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Best aquarium hydrometers - Buying Guide

Last Updated: 04/25/2024

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Bestselling aquarium hydrometers on Amazon

  1. Digital Salinity Tester for Salt Water - Waterproof IP67 Salinity Meter with ATC Large Range 0-200pp...
  2. AUTOUTLET Salinity Refractometer Saltwater Aquarium for Seawater, Pool, Tank, Marine, Fishkeeping, 0...
  3. Hallocool Salinity Refractometer for Seawater Marine Fishkeeping Aquarium 0-100PPT & 1.000-1.070 Sal...
  4. hygger Salinity Tester, Transparent Acrylic Aquarium Hydrometer Sea Specific Gravity Test Salinity M...
  5. 3-in-1 Animal Clinical Refractometer, Measuring Animal's Health Index of Urine Specific Gravity and ...
  6. WEBEST Aquarium Salt Tester -Pool Salt Tester, Versatile 5 in1 Salinity, PH, TDS, EC, and Temperatur...
  7. CYCLOPS INSTRUMENTS Professional Salinity Premium Refractometer for Seawater, Marine Fishkeeping Aqu...
  8. Yewhick Digital Salinity Tester for Saltwater, Waterproof Pool Salt Tester, 4 in 1 Salt/EC/TDS/Temp ...
  9. Toddmomy 1 Set High Precision Salinity Hydrometer Salt and Brine Hydrometer Glass Saltwater Hydromet...
  10. ALLmeter Salinity Refractometer Saltwater Aquariums Dual Scale 0-100 PPT & Specific Gravity 1.000-1....
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  #1

Digital Salinity Tester for Salt Water - Waterproof IP67 Salinity Meter with ATC Large Range 0-200ppt Saltwater Tester for Seawater, Aquariums, Marine Monitoring, and Koi Fish Pond by ORAPXI

Asin: B08GC7JCV3   |   Model: LD-154   |   PartNumber: LD-154   |   Ean: 0736139474435   |   UPC: 736139474435

Backlit Design: There Is No Need To Worry About Seeing The Displayed Value If The Light Is Insufficient. Orapxi Salinity Meter Features A Green Backlit Lcd To Help You See The Measurement Results Clearly In Any Situation..
After-Sales: 30-Day Free Return/Replacement And We Promise Respond Your Any Questions About The Product Within 12 Hours..
4-In-1 Salinity Tester: The Multi-Parameter Tester Can Test Salinity, Tds, Ec And Temperature In An Accurate, Quick And Reliable Manner For Most Regular Water Solutions' Testing..
Wide Applications: There Are Various Purposes For The Salinity Tester. This Instrument Can Not Only Detect The Salt Content Of Edible Salt, Salt Water Pool And Koi Fish Pond, But Also The Salinity Of Seawater, Marine, Salt Water Fish Tank Salt Level Testing..

Features

  • Salinity Range: 0~9999ppm/10~200ppt or 0.0-25%, ORAPXI salinity tester has an automatic temperature compensation function(32 F~140 F), which can decrease the error caused by the change of liquid temperature.
  • Wide applications: There are various purposes for the salinity tester. This instrument can not only detect the salt content of edible salt, salt water pool and koi fish pond, but also the salinity of seawater, marine, salt water fish tank salt level testing.
  • Backlit design: There is no need to worry about seeing the displayed value if the light is insufficient. ORAPXI salinity meter features a green backlit LCD to help you see the measurement results clearly in any situation.
  • 4-in-1 salinity tester: The multi-parameter Tester can test Salinity, TDS, EC and Temperature in an accurate, quick and reliable manner for most regular water solutions' testing.
  • After-sales: 30-day free return/replacement and we promise respond your any questions about the product within 12 hours.
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Brand: ORAPXI   |   Manufacturer: ORAPXI

Dimensions: 0.01 x 7.20 x 0.01 Inches

Amazon Price: $28.99 | as of 04/25/2024 (3:56am pst) *DETAILS
Availability: In Stock

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  #2

AUTOUTLET Salinity Refractometer Saltwater Aquarium for Seawater, Pool, Tank, Marine, Fishkeeping, 0-100PPT & 1.000-1.070 Salinity Tester with ATC Function Salinity Hydrometer Kit

Asin: B07CB5KDYL   |   Model: EFU007c   |   PartNumber: EFU007c   |   Ean: 0713289306953   |   UPC: 713289306953

【Measurement Range】Density Of 1.0-1.070 With Min Scale Of 0.001. Concentration Of 0-100‰, With Min Scale Of 1‰ (1‰=1Ppt=1000Ppm, Ppt Means “Parts Per Thousand”, Ppm Means “Parts Per Million”).
【Solid And Lightweight】Salinity Meter Is Made Of Durable Aluminum, Which Is Non-Staining, Non-Corrosive And Rustless. Also, It's Compact In Size With Rubberized Grip Handle, Very Easy To Carry..
【With Atc Function】Atc Compensation Range (I.E. Built-In Automatic Temperature Compensation System) From 10℃ To 30℃..
【Measures On 2 Scales】This Saltwater Hydrometer Measures On Dual Scales: Specific Gravity And Salinity. Ideal For Aquariums, Marine Monitoring, Agriculture, Gardening And Educational Purposes..

Features

  • AUTOUTLET Salinity Refractometer This salinity tester is used to measure salinity of brine/seawater, monitor and control the concentration of saltwater. Ideal for aquariums and marine applications.
  • Measures on 2 Scales This saltwater hydrometer measures on dual scales: specific gravity and salinity. Ideal for aquariums, marine monitoring, agriculture, gardening and educational purposes.
  • Measurement Range Density of 1.0-1.070 with min scale of 0.001. Concentration of 0-100 , with min scale of 1 (1 =1PPT=1000PPM, PPT means parts per thousand , PPM means parts per million )
  • With ATC Function ATC compensation Range (i.e. Built-in Automatic Temperature Compensation System) from 10 to 30 .
  • Solid and Lightweight Salinity meter is made of durable aluminum, which is non-staining, non-corrosive and rustless. Also, it's compact in size with rubberized grip handle, very easy to carry.
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Brand: AUTOUTLET   |   Manufacturer: AUTOUTLET

Dimensions: 2.36 x 7.87 x 3.54 Inches   |   Weight: 0.53 Pounds

Amazon Price: $16.99 | as of 04/25/2024 (3:56am pst) *DETAILS
Availability: In Stock

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  #3

Hallocool Salinity Refractometer for Seawater Marine Fishkeeping Aquarium 0-100PPT & 1.000-1.070 Salinity Hydrometer Salinity Tester with with Automatic Temperature Compensation (ATC)

Asin: B08TJ28XC1   |   Ean: 0730807006652   |   UPC: 730807006652

Atc Function - Saltwater Refractometer With Automatic Temperature Compensation (Atc) Function, Allow You To Obtain The Accurate Result Faster And Easier.
Durable Material: The Optic Salinity Tester Is Made Of Aluminum And Abs Rubber, Anti-Rust, Non-Staining And Resistant Abrasion. Portable Refractometer Comes With Plastic Case, Mini Screwdriver,A Dropper And A Cleaning Cloth.
Easy To Use - Put 2-3 Drops Of Sample On The Refracotmter’S Prism, Towards Light, Read The Accurate Readings Through The Optics Eyepiece Directly.
Widely Use - Salinity Refractometer Measures Saltwater, Salinity Of Water Or Seawater, Ideal For Aquariums, Marine Monitoring, Fish-Keeping, And Saltwater Pools.

Features

  • MEASURES ON 2 SCALES - Aquarium Refractometer features specific gravity (D20/20) 1.000-1.070 and parts per thousand 0~100 ( 1 =1 PPT=1000PPM), allow to get two results in different units by one test
  • WIDELY USE - Salinity Refractometer measures saltwater, salinity of water or seawater, ideal for aquariums, marine monitoring, fish-keeping, and saltwater pools
  • ATC FUNCTION - Saltwater refractometer with automatic temperature compensation (ATC) function, allow you to obtain the accurate result faster and easier
  • EASY TO USE - Put 2-3 drops of sample on the refracotmter s prism, towards light, read the accurate readings through the optics eyepiece directly
  • DURABLE MATERIAL: The optic salinity tester is made of aluminum and ABS rubber, anti-rust, non-staining and resistant abrasion. Portable Refractometer comes with plastic case, mini screwdriver,a dropper and a cleaning cloth
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Brand: Hallocool   |   Manufacturer: Hallocool

Amazon Price: $15.99 | as of 04/25/2024 (3:56am pst) *DETAILS
Availability: In Stock

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  #4

hygger Salinity Tester, Transparent Acrylic Aquarium Hydrometer Sea Specific Gravity Test Salinity Meter for Fish Tank Pond Water Saltwater Freshwater, Accurate Automatic Hydrometer

Asin: B0BG1TF8WT   |   Model: sample_sku_45356   |   PartNumber: sample_sku_45356

🐟Specification: The Reading Is Temperature-Corrected And Accurate To +/-0.001. The Unit Of Specific Gravity Is 1. 000-1. 030 (Ppt Value: 0-43.9 Degrees), The Safe Area Is 1.020-1.023 (Ppt Value: 30.2-34.2 Degrees), And The Low Specific Gravity Area Is 1.000-1.019 (Ppt Value: 0- 28.9 Degrees), The Higher Specific Gravity Area Is 1.024-1.030 (Ppt Value: 35.5-43.9 Degrees)..
🐟Wide Usage: Fit For Brackish And Reef Salt Marine Aquariums. Perfect For Testing Both Salinity And Specific Gravity Of Your Brackish And Marine Tank.Includes Salinity And Specific Gravity Scales..
🐟Safe Material: The Salinity Tester Is Made Of Transparent Acrylic Material, Which Is Relatively Hard And Easy To Read The Salt And Specific Gravity Of Your Marine Aquarium. After Use, Soak This Saltwater Meter In Mild Acid(Vinegar) For 30 Minutes, Rinse With Tap Water And Air Dry..
🐟Easy To Read & Use: Simply Dunk In Aquarium To Fill With Water, Then Set On Level Surface To Read. The Easy-To-Read Swing-Arm Pointer And Extra Wide Stable Base Provide An Accurate Test Result..

Features

  • Marine hydrometer: Tests salinity and specific gravity in marine aquariums to help maintain a healthy tank
  • Easy to Read & Use: Simply dunk in aquarium to fill with water, then set on level surface to read. The easy-to-read swing-arm pointer and extra wide stable base provide an accurate test result.
  • Specification: The reading is temperature-corrected and accurate to +/-0.001. The unit of specific gravity is 1. 000-1. 030 (ppt value: 0-43.9 degrees), the safe area is 1.020-1.023 (ppt value: 30.2-34.2 degrees), and the low specific gravity area is 1.000-1.019 (ppt value: 0- 28.9 degrees), the higher specific gravity area is 1.024-1.030 (ppt value: 35.5-43.9 degrees).
  • Safe Material: The salinity tester is made of transparent acrylic material, which is relatively hard and easy to read the salt and specific gravity of your marine aquarium. After use, soak this saltwater meter in mild acid(vinegar) for 30 minutes, rinse with tap water and air dry.
  • Wide Usage: Fit for brackish and reef salt marine aquariums. Perfect for testing both salinity and specific gravity of your brackish and marine tank.Includes salinity and specific gravity scales.
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Brand: hygger   |   Manufacturer: hygger

Amazon Price: $9.99 ($9.99 / Count) | as of 04/25/2024 (3:56am pst) *DETAILS
Availability: In Stock

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  #5

3-in-1 Animal Clinical Refractometer, Measuring Animal's Health Index of Urine Specific Gravity and Serum Protein, Ideal for Veterinary and Pet Owner

Asin: B07DLCYZMW   |   Model: SR0021-ATC   |   PartNumber: SR0021-ATC   |   Ean: 0698775153863   |   UPC: 698775153863

Measuring Range: -Total Serum Or Plasma Protein(Sp): 2-14G/Dl, - Urine Specific Gravity Of Dogs(Or Large Animals): 1.000~1.060Ri, - Urine Specific Gravity Of Cats(Or Small Animals): 1.000~1.060Ri.
Quick And Easy: Just Need 2-3 Drops Of Solution And A Few Seconds, You Can Get Accurate Readings. And No Battery Needed..
Features Automatic Temperature Compensation: Makes It More Convenient To Use In Different Temperature..
Triple Scales: The Left One Is For Testing Urine Specific Gravity Of Large Animals Like Dog, The Middle One Is For Testing Urine Specific Gravity Of Small Animals Like Cat, The Right One Is For Testing Serum Or Plasma Protein Level For All Animals..

Features

  • Animal clinical refractometer for testing the health index of urine specific gravity and serum or plasma protein for animals.
  • Triple scales: the left one is for testing urine specific gravity of large animals like dog, the middle one is for testing urine specific gravity of small animals like cat, the right one is for testing serum or plasma protein level for all animals.
  • Measuring range: -total serum or plasma protein(SP): 2-14g/dl, - urine specific gravity of dogs or large animals : 1.000~1.060RI, - urine specific gravity of cats or small animals : 1.000~1.060RI
  • Features automatic temperature compensation: makes it more convenient to use in different temperature.
  • Quick and easy: Just need 2-3 drops of solution and a few seconds, you can get accurate readings. And no battery needed.
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Brand: aichose   |   Manufacturer: Xindacheng

Dimensions: 1.50 x 8.00 x 1.50 Inches

Amazon Price: $21.99 | as of 04/25/2024 (3:56am pst) *DETAILS
Availability: In Stock
List Price: $23.99

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  #6

WEBEST Aquarium Salt Tester -Pool Salt Tester, Versatile 5 in1 Salinity, PH, TDS, EC, and Temperature Meter, Digital Salinity Tester for Saltwater Aquarium, Accurate Salinity Meter,Grey

Asin: B0CYFWLBWT

Versatile Applications: Whether You Own A Pool, Aquarium, Or Hot Tub, This Versatile Tester Is A Must-Have Tool. It Helps You Monitor And Adjust Salt Levels For A Healthy Aquatic Environment. Additionally, It Allows You To Measure Ph Levels And Overall Water Quality, Making It An All-In-One Solution For Water Testing..
Compact And Portable: Designed For Convenience, This Compact Tester Is Lightweight And Portable, Allowing You To Easily Carry It Wherever You Go. Whether You're Traveling Or Simply Maintaining Your Pool At Home, The Webest Pool Salt Tester Is The Perfect Companion..
Easy To Use: The Webest Pool Salt Tester Features A User-Friendly Interface, Making It Accessible To Both Beginners And Experienced Users. Simply Dip The Probe Into The Water And Get Instant Readings On The Clear Lcd Display. No Complicated Setup Or Calibration Required..
Accurate And Reliable: With Advanced Sensing Technology, This Digital Saltwater Tester Delivers Precise And Dependable Results, Ensuring Your Pool Or Aquarium Is Maintained At Optimal Salt Levels. Say Goodbye To Guesswork And Enjoy Peace Of Mind With Accurate Measurements..

Features

  • WEBEST Aquarium Salt Tester - Versatile 5 in 1 Salinity, PH, TDS, EC, and Temperature Meter, Salt Water Pool Testing Kit, Digital Salinity Tester for Saltwater Aquarium, Accurate Salinity Meter,Grey
  • Accurate and Reliable: With advanced sensing technology, this digital saltwater tester delivers precise and dependable results, ensuring your pool or aquarium is maintained at optimal salt levels. Say goodbye to guesswork and enjoy peace of mind with accurate measurements.
  • Versatile Applications: Whether you own a pool, aquarium, or hot tub, this versatile tester is a must-have tool. It helps you monitor and adjust salt levels for a healthy aquatic environment. Additionally, it allows you to measure pH levels and overall water quality, making it an all-in-one solution for water testing.
  • Easy to Use: The WEBEST Pool Salt Tester features a user-friendly interface, making it accessible to both beginners and experienced users. Simply dip the probe into the water and get instant readings on the clear LCD display. No complicated setup or calibration required.
  • Compact and Portable: Designed for convenience, this compact tester is lightweight and portable, allowing you to easily carry it wherever you go. Whether you're traveling or simply maintaining your pool at home, the WEBEST Pool Salt Tester is the perfect companion.
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Brand: WEBEST   |   Manufacturer: WEBEST

Warranty: 1 Year

Amazon Price: $29.99 | as of 04/25/2024 (3:56am pst) *DETAILS
Availability: In Stock

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  #7

CYCLOPS INSTRUMENTS Professional Salinity Premium Refractometer for Seawater, Marine Fishkeeping Aquarium, Pools, and Tanks, 0-100 PPT Salinity Tester with Automatic Temperature Compensation (ATC)

Asin: B0BQWZMNLY   |   Ean: 0860008517807   |   UPC: 860008517807

Unlike Hydrometers, Refractometers Are More Reliable For Easy And Quick Measurements..
Other Alternatives For Testing Salinity In Aquariums Include Hydrometers And Salinity Meters, But Refractometers Are Often The Preferred Choice Due To Their Accuracy And Ease Of Use..
Saltwater Refractometers Are Specifically Designed For Saltwater Pools Or Aquarium Use, Ensuring Accurate And Consistent Readings Of Salt Content..
It Is Commonly Used As A Salinity Tester For Saltwater Aquariums And Provides Accurate Readings Of The Water's Salinity Levels..

Features

  • CYCLOPS INSTRUMENTS refractometer is a precise and efficient tool for measuring salinity in saltwater aquariums or salt water pools..
  • It is commonly used as a salinity tester for saltwater aquariums and provides accurate readings of the water's salinity levels.
  • Unlike hydrometers, refractometers are more reliable for easy and quick measurements.
  • Saltwater refractometers are specifically designed for saltwater pools or aquarium use, ensuring accurate and consistent readings of salt content.
  • Other alternatives for testing salinity in aquariums include hydrometers and salinity meters, but refractometers are often the preferred choice due to their accuracy and ease of use.
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Brand: CYCLOPS INSTRUMENTS   |   Manufacturer: CYCLOPS INSTRUMENTS

Dimensions: 2.16 x 7.87 x 3.54 Inches

Amazon Price: $23.99 ($23.99 / Count) | as of 04/25/2024 (3:56am pst) *DETAILS
Availability: In Stock

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  #8

Yewhick Digital Salinity Tester for Saltwater, Waterproof Pool Salt Tester, 4 in 1 Salt/EC/TDS/Temp Meter, High Accuracy Saltwater Tester with ATC for Saltwater Pool, Aquarium, Koi Fish Pond

Asin: B0B68WHY7T   |   Model: s-100   |   PartNumber: s-100   |   Ean: 0742712531945   |   UPC: 742712531945

Tds And Ec Functions: The Tds Value Represents The Total Amount Of Dissolved Solids In The Water, While The Ec Represents The Ability Of The Solution To Conduct Current. In General, The Higher The Ec Value, The Higher The Salt Content, The Higher The Tds, And The More Impurities In The Water; Conversely, The Lower The Ec Value And Tds Value, The Purer The Water..
Wide Applications: This Salt Pool Water Tester Has The Test Functions Of Salinity, Tds And Ec For A Wider Range Of Use. It Can Not Only Detect The Salt Content, Such As Edible Salt, Sea Salt, Saltwater Pool And Saltwater Aquarium, But Also Analyze Water Quality By Testing Tds And Ec. The Lower The Tds And Ec Values, The Purer The Water..
Backlit Design: This Pool Salt Tester Is Designed With A Green Backlight, So You Don't Need To Worry About Not Seeing The Value On The Screen In Low Light. You Can See The Measurement Results Even At Night. It Will Automatically Shut Down After 5 Minutes Of Inactivity..
Salinity Meter With Large Range: 0~10000Ppm/10.1~200.0Ppt/0.01%-25.00%, Greater Salinity Testing Range Brings You A Better Experience, And This Salinity Tester Has An Automatic Temperature Compensation Function(32°F~140°F), Which Can Reduce The Error Caused By The Change Of Solution Temperature..

Features

  • 4-in-1 Salinity Tester: With salinity, TDS, EC, and temperature testing functions, this saltwater tester can analyze water quality more accurately, quickly, and reliably. Ideal tester for saltwater pools, saltwater aquariums, and sewage treatment.
  • salinity Meter with Large Range: 0~10000ppm/10.1~200.0ppt/0.01%-25.00%, greater salinity testing range brings you a better experience, and this salinity tester has an automatic temperature compensation function(32 F~140 F), which can reduce the error caused by the change of solution temperature.
  • TDS and EC functions: The TDS value represents the total amount of dissolved solids in the water, while the EC represents the ability of the solution to conduct current. In general, the higher the EC value, the higher the salt content, the higher the TDS, and the more impurities in the water; conversely, the lower the EC value and TDS value, the purer the water.
  • Backlit Design: This pool salt tester is designed with a green backlight, so you don't need to worry about not seeing the value on the screen in low light. You can see the measurement results even at night. It will automatically shut down after 5 minutes of inactivity.
  • Wide Applications: This salt pool water tester has the test functions of salinity, TDS and EC for a wider range of use. It can not only detect the salt content, such as edible salt, sea salt, saltwater pool and saltwater aquarium, but also analyze water quality by testing TDS and EC. The lower the TDS and EC values, the purer the water.
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Brand: Yewhick   |   Manufacturer: Yewhick

Amazon Price: $27.99 ($27.99 / Count) | as of 04/25/2024 (3:56am pst) *DETAILS
Availability: In Stock
List Price: $30.99 ($30.99 / Count)

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  #9

Toddmomy 1 Set High Precision Salinity Hydrometer Salt and Brine Hydrometer Glass Saltwater Hydrometer for Pool Aquarium Water

Asin: B0CQKL6275   |   Model: GU13117WE05BLFHJAWBK   |   PartNumber: GU13117WE05BLFHJAWBK

🐟【High Precision Salinity Hydrometer】- Easy To Operate And Use, Suitable For Professional And Personal To Use..
🐟【Salt Water Gravimeter】- Suitable For Swimming Pool, Aquaculture, Fish Tank, Water Laboratories, Etc..
🐟【Aquarium Salinity Hydrometer】- You Can Test Your Marine Aquariums Salt Level, Provide An Accurate Test Result, This Accurate And Quality Brewing Tools Will Show Your Care For Your Buddies And Family..
🐟【Glass Saltwater Hydrometer】- Compact And Light, Easy To Carry And Store, Not Taking Up Any Space..

Features

  • Quality Materials - Made of sturdy plastic, glass material, lightweight and durable, with excellent texture.
  • Glass Saltwater Hydrometer - Compact and light, easy to carry and store, not taking up any space.
  • High Precision Salinity Hydrometer - Easy to operate and use, suitable for professional and personal to use.
  • Aquarium Salinity Hydrometer - You can test your marine aquariums salt level, provide an accurate test result, this accurate and quality brewing tools will show your care for your buddies and family.
  • Salt Water Gravimeter - Suitable for swimming pool, aquaculture, fish tank, water laboratories, etc.
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Brand: Toddmomy   |   Manufacturer: Toddmomy

Amazon Price: $14.99 | as of 04/25/2024 (3:56am pst) *DETAILS
Availability: In Stock

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  #10

ALLmeter Salinity Refractometer Saltwater Aquariums Dual Scale 0-100 PPT & Specific Gravity 1.000-1.070 Salinity Tester Meter with ATC Function for Marine Monitoring,Fish Farming,Pool Hydrometer

Asin: B0BQMQPZFX   |   Model: ALL001   |   PartNumber: ALL001

Wide Measurement Range And Clear Dual Scale: Measures Salinity From 0-100‰ (0-100Ppt) And Specific Gravity From 1.000-1.070. The Dual Scale Display And Clearly Marked Readings Ensure Easy And Accurate Interpretation..
Versatile And Reliable: Suitable For Aquariums, Marine Monitoring, Fishkeeping, Agriculture, And Home Swimming Pools. Specifically Designed For Saltwater Aquarium Salinity Measurement..
Precise Salinity Measurement: The Allmeter Refractometer Delivers Accurate Readings Of Salt Content In Water, Making It Perfect For Aquariums, Marine Monitoring, Fish Cultivation, And Residential Swimming Pools. With Automatic Temperature Compensation (Atc), It Provides Fast And Dependable Results..
User-Friendly Operation: Just Add 2-3 Drops Of Water, Use The Screwdriver To Calibrate It To “0”, Wipe The Prism, Add The Sample, Wait For 30 Seconds, Align It With Light, And Adjust The Focusing Ring For Clear Readings..

Features

  • Durable and Portable: This aquarium salinity tester is constructed with non-corrosive aluminum, making it lightweight, durable, and easy to transport. Our salinity refractometer includes a sturdy case, 3 droppers, a screwdriver, a user manual, and a cleaning cloth for added protection and long-lasting use.
  • User-Friendly Operation: Just add 2-3 drops of water, use the screwdriver to calibrate it to 0 , wipe the prism, add the sample, wait for 30 seconds, align it with light, and adjust the focusing ring for clear readings.
  • Wide Measurement Range and Clear Dual Scale: Measures salinity from 0-100 (0-100PPT) and specific gravity from 1.000-1.070. The dual scale display and clearly marked readings ensure easy and accurate interpretation.
  • Precise Salinity Measurement: The ALLmeter refractometer delivers accurate readings of salt content in water, making it perfect for aquariums, marine monitoring, fish cultivation, and residential swimming pools. With automatic temperature compensation (ATC), it provides fast and dependable results.
  • Versatile and Reliable: Suitable for aquariums, marine monitoring, fishkeeping, agriculture, and home swimming pools. Specifically designed for saltwater aquarium salinity measurement.
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Brand: ALLmeter   |   Manufacturer: ALLmeter

Weight: 0.66 pounds

Amazon Price: $16.99 ($16.99 / Count) | as of 04/25/2024 (3:56am pst) *DETAILS
Availability: In Stock

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  #11

Abnaok Salinity Tester, Sea Specific Gravity Test for Fish Tank Pond Water Saltwater Freshwater, Accurate Automatic Hydrometer

Asin: B07R1TVRKF   |   Ean: 0824006760566   |   UPC: 824006760566

Clearly Safe Zone Indicated:Includes Solinity And Specific Grovity Scales.The Outside Rang Of Scale Indicates Salinity(Ppt).The Inside Range Of Scale Indicates Gravity.And With Safe Zone Clearly Indicated.Range Of Use: 0-40 Degrees (1.000-1.030).If The Salinity Ppt Between 32 - 40,Show That The Salinity Hydrometer Is High;If The Salinity Ppt Between 27 - 31,Show That The Salinity Hydrometer Is Normal; If The Salinity Ppt Between 0 - 26,Show That The Salinity Hydrometer Is Light..
Easy To Read And Use:The Easy-To-Read Swing-Arm Pointer And Extra Wide Stable Base Provide An Accurate Test Result..
Wide Usage:Fit For Brackish And Marine Aquariums.Perfect For Testing Both Salinity And Specific Gravity Of Your Brackish And Marine Tank.Includes Solinity And Specific Grovity Scales.Suitable For Fresh Water And Sea Water..
Durable Clear Acrylic:Accurate, Durable, And Easy To Read Your Marine Aquarium's Salt Level And Specific Gravity,Small And Waterproof.If The Specific Gravity Between 1.000 - 1.019,Show That The Specific Gravity Is Small;If The Specific Gravity Between 1.020 - 1.023,Show That The Specific Gravity Is Nomal;If The Specific Gravity Between 1.024 - 1.030,Show That The Specific Gravity Is Big;.

Features

  • Safe Material:Made of plastic,aquarium clear Automatic Accurate Readable SaltWater Hydrometer.
  • Durable Clear Acrylic:Accurate, durable, and easy to read your marine aquarium's salt level and specific gravity,Small and waterproof.if the specific gravity between 1.000 - 1.019,show that the specific gravity is small;if the specific gravity between 1.020 - 1.023,show that the specific gravity is nomal;if the specific gravity between 1.024 - 1.030,show that the specific gravity is big;
  • Clearly Safe Zone Indicated:Includes solinity and specific grovity scales.The outside rang of scale indicates salinity(PPT).The inside range of scale indicates gravity.And with safe zone clearly indicated.Range of use: 0-40 degrees (1.000-1.030).If the salinity ppt between 32 - 40 show that the salinity hydrometer is high;If the salinity ppt between 27 - 31 show that the salinity hydrometer is normal; If the salinity ppt between 0 - 26 show that the salinity hydrometer is light.
  • Wide Usage:Fit for brackish and marine aquariums.Perfect for testing both salinity and specific gravity of your brackish and marine tank.Includes solinity and specific grovity scales.Suitable for fresh water and sea water.
  • Easy to Read and Use:The easy-to-read swing-arm pointer and extra wide stable base provide an accurate test result.
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Brand: Abnaok   |   Manufacturer: Abnaok

Amazon Price: $10.99 | as of 04/25/2024 (3:56am pst) *DETAILS
Availability: In Stock

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  #12

Digital Salinity Tester for Salt Water - Aquarium Salinity Meter with ATC, IP67 Waterproof, 0-200 PPT Large Range Multi-Parameter Tester for Seawater, Fish Tank, Hydroponics

Asin: B08LD4BVHB   |   Model: LD-203   |   PartNumber: LD-203   |   Ean: 0736139474466   |   UPC: 736139474466

[Easy Reading With Lcd Backlight] There Is No Need To Worry About Seeing The Displayed Value If The Light Is Insufficient. Ciztada Salinity Meter Features A Green Backlit Lcd To Help You See The Measurement Results Clearly In Any Situation.
[Wide Applications]: Measures Saltwater Or Salinity Of Water, Ideal For Aquarium, Marine Monitoring, Salty Pools & Spas, Koi Fish Pond, Hydroponics And Etc.
[Multifunctional Salinity Tester]: The Ciztada Multi-Parameter Tester Can Test Salinity, Tds, Ec And Temperature In An Accurate, Quick And Reliable Manner For Most Regular Water Solutions' Testing. Support One-Tap Switch From Salinity To Tds/Ec.
[Automatic Temperature Compensation] Notice: We Recommend Waiting For A While To Observe The Measurement Results For More Accurate Reading. Ciztada Salinity Tester Is Equipped With Atc Part Inside, During Normal Temperature, Once Calibrated, The Temperature Change Would Never Affect The Accurate Of Your Measuring Result..

Features

  • [Large Salinity Range] Ciztada salinity tester has 2 measurement modes, scale range: 0~9999 ppm/10.0~200 ppt and 0.00-25.00%, which is 2 times than the salinity refractometer
  • [Automatic Temperature Compensation] Notice: We recommend waiting for a while to observe the measurement results for more accurate reading. Ciztada salinity tester is equipped with ATC part inside, during normal temperature, once calibrated, the temperature change would never affect the accurate of your measuring result.
  • [Easy Reading with LCD Backlight] There is no need to worry about seeing the displayed value if the light is insufficient. Ciztada salinity meter features a green backlit LCD to help you see the measurement results clearly in any situation
  • [Multifunctional Salinity tester]: The Ciztada multi-parameter Tester can test Salinity, TDS, EC and Temperature in an accurate, quick and reliable manner for most regular water solutions' testing. Support One-tap switch from salinity to TDS/EC
  • [Wide Applications]: Measures saltwater or salinity of water, ideal for aquarium, marine monitoring, salty pools & spas, koi fish pond, hydroponics and etc
  • See more on Amazon...

Brand: CIZTADA   |   Manufacturer: CIZTADA

Amazon Price: $27.99 | as of 04/25/2024 (3:56am pst) *DETAILS
Availability: In Stock
List Price: $29.39

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  #13

V RESOURCING Pet Dog & Cat Refractometer,V-Resourcing Pet Urine Specific Gravity (1.000~1.060) Clinical Refractometer with Serum or Plasma Protein Test (2~14 g/100ml) for Veterinary Cat,Dog, Pets

Asin: B074QNDGGW   |   Model: VLT065   |   PartNumber: VLT065   |   Ean: 0671423645828   |   UPC: 671423645828

3.[ Easy To Use ] Place 2 - 3 Drops Of Sample Onto The Prism, And Then Look Through The Eyepiece For Both Brix And Specific Gravity Readings.
5.[ Application ] This Product Provides Quick And Accurate Indication Of Vital Fluids Levels.Ideal For Clinical Usage And Intended For Veterinary.
4.[ Convenient To Store ] Compact In Size And Light In Weight, Packed With A Plastic Case, Convenient To Store And Carry Around.
2.[ Measuring Range ] Dog Urine Specific Gravity:1.000~1.060 ; Cat Urine Specific Gravity:1.000~1.060 ; Serum Or Plasma Protein:2~14 G/100Ml.

Features

  • 1.Hand-Held Pet Urine Specific Gravity Refractometer with Automatic Temperature Compensation(ATC: 10 ~30 )
  • 2.[ Measuring Range ] Dog Urine Specific Gravity:1.000~1.060 ; Cat Urine Specific Gravity:1.000~1.060 ; Serum or Plasma Protein:2~14 g/100ml
  • 3.[ Easy to use ] Place 2 - 3 drops of sample onto the prism, and then look through the eyepiece for both Brix and Specific Gravity readings
  • 4.[ Convenient to store ] Compact in size and light in weight, packed with a plastic case, convenient to store and carry around
  • 5.[ Application ] This product provides quick and accurate indication of vital fluids levels.Ideal for clinical usage and intended for Veterinary
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Brand: V·RESOURCING   |   Manufacturer: V-Resourcing

Weight: 0.10 Pounds

Amazon Price: $15.99 | as of 04/25/2024 (3:56am pst) *DETAILS
Availability: In Stock

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  #14

boxtech Aquarium Marine Test, Sea Saltwater Hydrometer, Reef Ocean Hydrometer Salinity Meter for Pool Aquarium Water Salinity Specific Gravity Test

Asin: B07FXV8KZ3   |   Model: YDJ   |   PartNumber: YDJ   |   Ean: 0698253897265   |   UPC: 698253897265

🐠 Higher Accuracy & Safe Zone Indicated: Readings Are Temperature-Corrected & Accurate To +/- 0. 001. Specific Gravity Units Ranges From 1. 000 - 1. 030 With A Safe Zone Of 1.020-1.023. The Outside Range Of Scale Indicates Salinity Ppt, Ranges From 0-40, Safe Zone Is 27-31.
🐠 Wide Usage:Fit For Brackish And Reef Salt Marine Aquariums. Perfect For Testing Both Salinity And Specific Gravity Of Your Brackish And Marine Tank.Includes Salinity And Specific Gravity Scales.Suitable For Fresh Water And Sea Water.
🐠Easy To Read & Clean: The Easy-To-Read Swing-Arm Pointer And Extra Wide Stable Base Provide An Accurate Test Result. After Use, Soak This Saltwater Meter In Mild Acid(Vinegar) For 30 Minutes, Rinse With Tap Water And Air Dry. Do Not Disassemble.
🐠 Quickly, Easily, And Accurately Measurement: With This Hydrometer Saltwater Aquarium Test Kit, You Can Test Your Marine Aquarium's Salt Level And Specific Gravity, And It Is Optimum To Be Put Into Below 6" Deep Water To Avoid The Error Caused By The Oil Film On The Water.

Features

  • Safe Material & Unique Design: Made of durable Acrylic, this Fish Tank Test Kit salinity Hydrometer is designed with an automatic level function
  • Quickly, easily, and accurately measurement: With this hydrometer saltwater aquarium test kit, you can test your marine aquarium's salt level and specific gravity, and It is optimum to be put into below 6 deep water to avoid the error caused by the oil film on the water
  • Higher Accuracy & safe zone indicated: Readings are temperature-corrected & accurate to +/- 0. 001. specific gravity units ranges from 1. 000 - 1. 030 with a safe zone of 1.020-1.023. The outside range of scale indicates salinity ppt, ranges from 0-40, safe zone is 27-31
  • Easy to Read & Clean: The easy-to-read swing-arm pointer and extra wide stable base provide an accurate test result. After use, soak this saltwater meter in mild acid(vinegar) for 30 minutes, rinse with tap water and air dry. Do not disassemble
  • Wide Usage:Fit for brackish and reef salt marine aquariums. Perfect for testing both salinity and specific gravity of your brackish and marine tank.Includes salinity and specific gravity scales.Suitable for fresh water and sea water
  • See more on Amazon...

Brand: boxtech   |   Manufacturer: boxtech

Dimensions: 0.98 x 5.12 x 9.06 inches   |   Weight: 0.24 Pounds

Amazon Price: $9.99 | as of 04/25/2024 (3:56am pst) *DETAILS
Availability: In Stock

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  #15

balacoo Aquarium Glass Hydrometer - 4 pcs Fish Tank Hydrometer with Thermometer Aquarium Glass Fish Tank Float Hydrometer

Asin: B0B4H6RSGS   |   Model: 3U822D163E0861751   |   PartNumber: 3U822D163E0861751

🐟Durable Construction🐟: Made With Durable Materials, This Hydrometer Is Built To Last And Withstand The Harsh Conditions Of A Saltwater Environment..
🐟Essential Tool For Aquarium Enthusiasts🐟: Whether You're A Seasoned Aquarium Hobbyist Or Just Starting Out, This Hydrometer Is An Essential Tool For Maintaining A Healthy And Thriving Aquatic Environment..
🐟Suitable For Marine Fish Tanks🐟: Specifically Designed For Measuring The Specific Gravity Of Saltwater, Providing Convenience For Raising Marine Fish..
🐟Accurate Readings🐟: The Hydrometer Provides Accurate Readings Of The Specific Gravity And Temperature Of The Water In Your Fish Tank Or Aquarium, Ensuring The Health And Well-Being Of Your Aquatic Pets..

Features

  • Floating design : The hydrometer floats in any corner of the fish tank, providing automatic temperature and testing.
  • Accurate readings : The hydrometer provides accurate readings of the specific gravity and temperature of the water in your fish tank or aquarium, ensuring the health and well-being of your aquatic pets.
  • Durable construction : Made with durable materials, this hydrometer is built to last and withstand the harsh conditions of a saltwater environment.
  • Suitable for marine fish tanks : Specifically designed for measuring the specific gravity of saltwater, providing convenience for raising marine fish.
  • Essential tool for aquarium enthusiasts : Whether you're a seasoned aquarium hobbyist or just starting out, this hydrometer is an essential tool for maintaining a healthy and thriving aquatic environment.
  • See more on Amazon...

Brand: balacoo   |   Manufacturer: Balacoo

Weight: 0.24 pounds

Amazon Price: $13.29 ($13.29 / Count) | as of 04/25/2024 (3:56am pst) *DETAILS
Availability: In Stock

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  #16

Abuycs Salinity Refractometer for Seawater and Marine Fishkeeping Aquarium, Saltwater Tester Hydrometer, Dual Sacle 0-100ppt & 1.000-1.070 Specific Gravity with ATC Automatic Temperature Compensation

Asin: B082D8YBX3

✅Atc Technology:Handheld Salinity Refractometerr With Automatic Temperature Compensation(Atc),No More Worry About The Temperature Change Will Influence The Reading Accuracy.The Fish Keeping Refractometer Will Account For Changes In Ambient Temperature And Automatically Compensate Accordingly To Provides Accurate And Repeatable Measurements..
✅Wide Application: It Is For Measuring The Salinity Of Salt Water Quickly And Accurately, Ideal For Agriculture, Industry And Research Application, Such As Mariculture, Fish Culture, Aquarium, Marine Survey, Water Quality Monitoring, Salt Production, Manufacture Of Normal Saline, Salinity Measurement In Food Processing Etc. Can Also Be Used For Medical Institutions, University Research And So On..
✅Aircraft Alumium Body Material:The Aquarium Refractometer Is Made Of Non-Staining, Non-Corrosive And Non-Reactive Aluminum Which Is Lightweight To Carry,Anti-Scratch And Durable..
✅ Endless Application And Easy To Use,:Ideal For Testing And Monitoring Aquariums,Fish Tank, Saltwater Pool,Seawater.Just Need 2-3 Drops Of Solution, You Can Get Accurate Readings. No Batteries Needed..

Features

  • DUAL SCALE MEASURES SALT PERCENT AND SG:Specific gravity,range: 1.000-1.070 g/cm3, resolution: 0.001 g/cm3.Salt percent, range: 0-100 ppt ( or say parts per thousand), resolution: 1 ppt.It is designed for the measurement of seawater (marine aquaria) or very low concentrated salt solutions.
  • ENDLESS APPLICATION AND EASY TO USE,:Ideal for testing and monitoring aquariums,fish tank, saltwater pool,seawater.Just need 2-3 drops of solution, you can get accurate readings. No batteries needed.
  • ATC TECHNOLOGY:Handheld Salinity Refractometerr with Automatic Temperature Compensation(ATC),no more worry about the temperature change will influence the reading accuracy.the fish keeping refractometer will account for changes in ambient temperature and automatically compensate accordingly to provides accurate and repeatable measurements.
  • AIRCRAFT ALUMIUM BODY MATERIAL:The aquarium refractometer is made of non-staining, non-corrosive and non-reactive aluminum which is lightweight to carry,anti-scratch and durable.
  • WIDE APPLICATION: It is for measuring the salinity of salt water quickly and accurately, ideal for agriculture, industry and research application, such as mariculture, fish culture, aquarium, marine survey, water quality monitoring, salt production, manufacture of normal saline, salinity measurement in food processing etc. Can also be used for medical institutions, university research and so on.
  • See more on Amazon...

Brand: Abuycs   |   Manufacturer: Rockgood ltd.

Weight: 0.49 pounds

Amazon Price: $15.99 ($7.27 / 100 g) | as of 04/25/2024 (3:56am pst) *DETAILS
Availability: In Stock

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  #17

capetsma Salinity Tester, Accurate Sea Hydrometer Aquarium Marine Salinity Meter for Fish Tank Pond Water Saltwater Freshwater Specific Gravity Test

Asin: B07P7462L5   |   Ean: 0682228013712   |   UPC: 682228013712

🐠 Higher Accuracy & Safe Zone Indicated: Readings Are Temperature-Corrected & Accurate To +/- 0. 001. Specific Gravity Units Ranges From 1. 000 - 1. 030 With A Safe Zone Of 1.020-1.023. The Outside Range Of Scale Indicates Salinity Ppt, Ranges From 0-40, Safe Zone Is 27-31..
🐠 Wide Usage:Fit For Brackish And Reef Salt Marine Aquariums. Perfect For Testing Both Salinity And Specific Gravity Of Your Brackish And Marine Tank.Includes Salinity And Specific Gravity Scales.Suitable For Fresh Water And Sea Water..
🐠Easy To Read & Clean: The Easy-To-Read Swing-Arm Pointer And Extra Wide Stable Base Provide An Accurate Test Result. After Use, Soak This Saltwater Meter In Mild Acid(Vinegar) For 30 Minutes, Rinse With Tap Water And Air Dry. Do Not Disassemble..
🐠 Quickly, Easily, And Accurately Measurement: With This Hydrometer Saltwater Aquarium Test Kit, You Can Test Your Marine Aquarium's Salt Level And Specific Gravity, And It Is Optimum To Be Put Into Below 6" Deep Water To Avoid The Error Caused By The Oil Film On The Water..

Features

  • Safe Material & Unique Design: Made of durable Acrylic, this Fish Tank Test Kit salinity Hydrometer is designed with an automatic level function.
  • Quickly, easily, and accurately measurement: With this hydrometer saltwater aquarium test kit, you can test your marine aquarium's salt level and specific gravity, and It is optimum to be put into below 6 deep water to avoid the error caused by the oil film on the water.
  • Higher Accuracy & safe zone indicated: Readings are temperature-corrected & accurate to +/- 0. 001. specific gravity units ranges from 1. 000 - 1. 030 with a safe zone of 1.020-1.023. The outside range of scale indicates salinity ppt, ranges from 0-40, safe zone is 27-31.
  • Easy to Read & Clean: The easy-to-read swing-arm pointer and extra wide stable base provide an accurate test result. After use, soak this saltwater meter in mild acid(vinegar) for 30 minutes, rinse with tap water and air dry. Do not disassemble.
  • Wide Usage:Fit for brackish and reef salt marine aquariums. Perfect for testing both salinity and specific gravity of your brackish and marine tank.Includes salinity and specific gravity scales.Suitable for fresh water and sea water.
  • See more on Amazon...

Brand: capetsma   |   Manufacturer: Capetsma

Amazon Price: $9.99 | as of 04/25/2024 (3:56am pst) *DETAILS
Availability: In Stock

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  #18

0-28% Salinity Refractometer ATC, Sodium Chloride (NaCl) Salt Level Meter Tester, Test Kit for Sea Water Brine Seawater Food Industry Pickle Soy Sauce, 0.2% Accuracy

Asin: B07FQLVK95   |   Model: RES-28ATC   |   PartNumber: RES-28ATC   |   Ean: 0600316548571   |   UPC: 600316548571

Versatile Food Industry Applications: Test The Concentration Of Prepared Food Solutions In Various Food Industry Settings, Including Seafood Curing, Pickles, Soups, Cooked Food, Fish Processing Products, Seawater, And Brine..
Quality And Safety Assured: This Refractometer Meets Strict Quality And Safety Standards, Providing Accurate Results And Ensuring The Utmost Reliability In Food Industry Applications..
User-Friendly Design: The Refractometer Features Auto Temperature Compensation (Atc) For Reliable Measurements Across Temperature Variations. It Offers Simple Calibration And Operation, With An Adjustable Focus, Clear Scale, And Large, Easy-To-Read Measurements..
Ideal For Food Preservation: Ensure Optimal Food Preservation Processes For Extended Shelf Life By Managing The Salt Concentration In Brine Solutions, Such As Those Used For Curing Salmon And Other Seafood..

Features

  • Accurately Measure Salt Concentration: Easily determine the salinity of water containing dissolved salt and minimal other dissolved solids with precision and accuracy.
  • Ideal for Food Preservation: Ensure optimal food preservation processes for extended shelf life by managing the salt concentration in brine solutions, such as those used for curing salmon and other seafood.
  • Versatile Food Industry Applications: Test the concentration of prepared food solutions in various food industry settings, including seafood curing, pickles, soups, cooked food, fish processing products, seawater, and brine.
  • User-Friendly Design: The refractometer features Auto Temperature Compensation (ATC) for reliable measurements across temperature variations. It offers simple calibration and operation, with an adjustable focus, clear scale, and large, easy-to-read measurements.
  • Quality and Safety Assured: This refractometer meets strict quality and safety standards, providing accurate results and ensuring the utmost reliability in food industry applications.
  • See more on Amazon...

Brand: Gain Express   |   Manufacturer: Gain Express Holdings Ltd

Amazon Price: $21.90 | as of 04/25/2024 (3:56am pst) *DETAILS
Availability: In Stock

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  #19

Semetall Salinity Tester Transparent Acrylic Aquarium Sea Hydrometer Salinity Meter Salinity Specific Gravity Test for Fish Tank Pond Water Saltwater Freshwater

Asin: B08Q2YDZ1P   |   Model: LW943   |   PartNumber: LW943   |   Ean: 0770343801564   |   UPC: 770343801564

【🐟 Design 】 The Easy-To-Read Swing Arm Pointer And Ultra-Wide Stable Base Provide Accurate Test Results..
【🐟 Note】Before Using The Salinity Hydrometer Tester For The First Time, Fill It With Warm Water And Wash It With Detergent Before Using It. After Use, Immerse The Salt Water Meter In Weak Acid (Vinegar) For 30 Minutes, Rinse With Tap Water And Air Dry..
【🐟 Application】The Aquarium Saltwater Hydrometer Can Perfectly Test The Salinity And Specific Gravity Of Brackish Water And Marine Fish Tanks, Including The Solubility And Specific Gravity Scale. At The Same Time, It Is Very Suitable For Fresh Water And Sea Water..
【🐟 Material】The Salinity Tester Is Made Of Transparent Acrylic Material, Which Is Relatively Hard And Easy To Read The Salt And Specific Gravity Of Your Marine Aquarium..

Features

  • SPECIFICATION The reading is temperature-corrected and accurate to +/-0.001. The unit of specific gravity is 1. 000-1. 030 (ppt value: 0-40 degrees), the safe area is 1.020-1.023 (ppt value: 27-31 degrees), and the low specific gravity area is 1.000-1.019 (ppt value: 0- 26 degrees), the higher specific gravity area is 1.024-1.030 (ppt value: 32-40 degrees). (Note: PPT value indicates salinity in the outer range of the scale)
  • MATERIAL The salinity tester is made of transparent acrylic material, which is relatively hard and easy to read the salt and specific gravity of your marine aquarium.
  • DESIGN The easy-to-read swing arm pointer and ultra-wide stable base provide accurate test results.
  • APPLICATION The aquarium saltwater hydrometer can perfectly test the salinity and specific gravity of brackish water and marine fish tanks, including the solubility and specific gravity scale. At the same time, it is very suitable for fresh water and sea water.
  • NOTE Before using the salinity hydrometer tester for the first time, fill it with warm water and wash it with detergent before using it. After use, immerse the salt water meter in weak acid (vinegar) for 30 minutes, rinse with tap water and air dry.
  • See more on Amazon...

Brand: Semetall   |   Manufacturer: Semetall

Amazon Price: $9.59 | as of 04/25/2024 (3:56am pst) *DETAILS
Availability: In Stock

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  #20

Salinity Refractometer with ATC Function, Saltwater Test Kit for Seawater, Pool, Aquarium, Fish Tank...Dual Scale: Specific Gravity & Salt Percent

Asin: B09XHYJMQ3   |   Model: SR0033GB-ATC   |   PartNumber: SR0033GB-ATC   |   Ean: 0616430440110   |   UPC: 616430440110

Automatic Temperture Compensation --The Build-In Automatic Temperature Compensation Feature Makes It Get Consistently Accurate Reading, No Need To Control The Liquids Temperature Deliberately, Just Make Sure It's At Roomtemperature ..
Easy , Accurate & Affordable - This Refractometer Is More Accurate And Easier To Use Than Traditional Hydrometers, More Affordable Than Digital Refractometers..
Widely Use - Can Be Used For Aquariums, Marine Monitoring, Agricultural, Gardening & Educational Purposes..
Dual Scale -- Provides Reading Of 0-100Ppt(Parts Per Thousand ) And Corresponding Specific Gravity Range 1.000 To 1.070. You Can Get The Both Result At Just One Test..

Features

  • DESIGNED FOR - testing the concentration of saltwater, help you to monitor and control the concentration of salt water.
  • DUAL SCALE -- Provides reading of 0-100PPT(parts per thousand ) and corresponding specific gravity range 1.000 to 1.070. You can get the both result at just one test.
  • AUTOMATIC TEMPERTURE COMPENSATION --The build-in Automatic Temperature Compensation feature makes it get consistently accurate reading, no need to control the liquids temperature deliberately, just make sure it's at roomtemperature .
  • WIDELY USE - Can be used for Aquariums, Marine Monitoring, Agricultural, Gardening & Educational Purposes.
  • EASY , ACCURATE & AFFORDABLE - This refractometer is more accurate and easier to use than traditional hydrometers, more affordable than digital refractometers.
  • See more on Amazon...

Brand: aichose   |   Manufacturer: XDC Co,.Ltd.

Amazon Price: $18.99 | as of 04/25/2024 (3:56am pst) *DETAILS
Availability: In Stock

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  #21

Digital LCD Thermometer Electronic Temperature Meter Gauge with Probe for Fish Tank Fridge, Doll Straw Hat

Asin: B0D28XMCMP

This Digital Thermometer With Probe Is Small In Size, Only 4.8X2.8X1.5Cm/1.89X1.10X0.59 Inch, Easy To Use And Carry..
This Lcd Digital Thermometer Works Temperature: 0℃-50℃, Temperature Measurement Range: -50℃-110℃, It Is Very Suitable For Refrigerators, Chillers And Deep Freezers..
This Thermometer Is Easy To Use, Immerse The Probe In A Fish Tank With A Waterproof Sensor To Measure The Water Temperature (Submersible Probe, Do Not Immerse The Thermometer In Water)..
This Digital Thermometer Is Also Suitable For Measuring The Temperature Inside And Outside The Car, Air-Conditioned Room, Refrigerator, Fish Tank, Fish Pond, Or Bath Water Temperature..

Features

  • This mini thermometer has an LCD digital display with large number symbols for easy reading.
  • This digital thermometer is also suitable for measuring the temperature inside and outside the car, air-conditioned room, refrigerator, fish tank, fish pond, or bath water temperature.
  • This digital thermometer with probe is small in size, only 4.8x2.8x1.5cm/1.89x1.10x0.59 inch, easy to use and carry.
  • This thermometer is easy to use, immerse the probe in a fish tank with a waterproof sensor to measure the water temperature (submersible probe, do not immerse the thermometer in water).
  • This LCD digital thermometer works temperature: 0 -50 , temperature measurement range: -50 -110 , it is very suitable for refrigerators, chillers and deep freezers.
  • See more on Amazon...

Brand: Peosaard   |   Manufacturer: Peosaard

Dimensions: 1.97 x 1.97 x 1.97 inches   |   Weight: 0.07 pounds

Amazon Price: $6.69 | as of 04/25/2024 (3:56am pst) *DETAILS
Availability: In Stock

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  #22

Tqyijhy Salinity Refractometer for Saltwater Handheld Aquarium Salinity Tester DualScale Saltwater Refractometer for Fishtanks Saltwater Refractometer for Saltwater Fishtanks

Asin: B0D1NX9BK2   |   Ean: 7616991461152

Whether Youare Preparingseafood Maintaining Stock Solution In A Laboratory, This Refractometer Is Essential. It Ensures Precise Measurements And Results..
Perfect For Marine Hobbyists, Researchlabs, And The Marineindustry, This Refractometer Provides Accurate Readings Of Salinity Level In Seawater..
This Dualscale Refractometer Is Designed To Measure Both Specific And Saltconcentration. Its Compact Size And Sturdy Design Make It Convenient To Carry And Use..
Take Control Of Your Homemade Pickle And Frozenproduce With This Refractometer. It Helps You Maintain The Quality Of Your End Product By Providing Valuable Information On Saltlevels..

Features

  • Ensure optimalsalinitylevels in your aquarium with this Salinity Refractometer. Accurate and easy to use, its a must have for marine enthusiasts.
  • Take control of your homemade pickle and frozenproduce with this refractometer. It helps you maintain the quality of your end product by providing valuable information on saltlevels.
  • Whether youare preparingseafood maintaining stock solution in a laboratory, this refractometer is essential. It ensures precise measurements and results.
  • This dualscale refractometer is designed to measure both specific and saltconcentration. Its compact size and sturdy design make it convenient to carry and use.
  • Perfect for marine hobbyists, researchlabs, and the marineindustry, this refractometer provides accurate readings of salinity level in seawater.
  • See more on Amazon...

Brand: Tqyijhy   |   Manufacturer: Tqyijhy

Amazon Price: $17.59 | as of 04/25/2024 (3:56am pst) *DETAILS
Availability: In Stock

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  #23

Saddgo Handheld Salinity Refractometer 0 to 100% Salinometer 1.000-1.070 Sea Water Concentration Tester Meter for Aquarium

Asin: B0D1FXBHNF   |   Ean: 7624580055866

Designed For Professionals In Agriculture, Industry, And Research For Mariculture, Aquarium Enthusiasts, And Food Processing Applications..
Experience The Convenience Of Automatic Temperature Compensation And Easy Operation, Making Salinity Measurement A Breezefor Anyone..
Take Our Portable Salinometer Anywhere You Need To Measure Concentration From The Ocean To Your Own Backyard..
Made With High Quality Glassprism For Precise Measurements And Adjustable Eyepiece For Clear Readings Ensuring Results Every Time..

Features

  • Measure salinity quickly and accurately with our handheld refractometer perfect for marine survey, water quality monitoring, and fish culture.
  • Made with high quality glassprism for precise measurements and adjustable eyepiece for clear readings ensuring results every time.
  • Designed for professionals in agriculture, industry, and research for mariculture, aquarium enthusiasts, and food processing applications.
  • Take our portable salinometer anywhere you need to measure concentration from the ocean to your own backyard.
  • Experience the convenience of automatic temperature compensation and easy operation, making salinity measurement a breezefor anyone.
  • See more on Amazon...

Brand: Saddgo   |   Manufacturer: Saddgo

Amazon Price: $16.75 | as of 04/25/2024 (3:56am pst) *DETAILS
Availability: In Stock

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  #24

BESPORTBLE 1 Set Aquatic Meter Water Measuring Tester Professional Aquarium Test Tool Aquarium Salinometer Water Salimeter Glass Hydrometer Sea Water Testing Tool Aquatic Hydrometer

Asin: B0D14YLHH1   |   Model: 11USP20SV30N2MJR4   |   PartNumber: 11USP20SV30N2MJR4

Sea Water Testing Tool: It Is Made Of Glass Material, Which Is Durable And Practical, Not Easy To Break..
Densitometer For Fish Tank: In Aquariums, It Is Convenient To Measure The Gravity Of Seawater And Raise Fish..
Sea Water Quality Tester: Lightweight And Suitable Size, You Can Even Store Them In A Small Bag..
Aquatic Hydrometer: It Has A Simple Design, But Very Practical In Use, Giving You A Nice Using Experience..

Features

  • Salt water gravimeter: it is convenient to test the specific gravity and temperature of water.
  • Aquatic hydrometer: it has a simple design, but very practical in use, giving you a nice using experience.
  • Sea water testing tool: it is made of glass material, which is durable and practical, not easy to break.
  • Sea water quality tester: lightweight and suitable size, you can even store them in a small bag.
  • Densitometer for fish tank: in aquariums, it is convenient to measure the gravity of seawater and raise fish.
  • See more on Amazon...

Brand: BESPORTBLE   |   Manufacturer: BESPORTBLE

Dimensions: 0.79 x 10.43 x 0.79 inches   |   Weight: 0.13 pounds

Amazon Price: $8.89 | as of 04/25/2024 (3:56am pst) *DETAILS
Availability: In Stock

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  #25

ORAPXI Hot Tub Scum Absorber Spa Cleaner and Salinity Meter for Saltwater Pool Hot Tub and Spa

Asin: B0D14DDGL1

[Hot Tub Accessories] The Hot Tub Cleaning Sponge Will Help Keep Hot Tub And Pool Water Looking Great. The Oil Sponge Hot Tub Oil Absorber Is Built To Last And A Must Have Hot Tub Accessories..
[Bubble And Scum Free] Portable Hot Tub Scum Absorbers Are Made Of Quality 3D Mesh Material, Filled With Quality Scum Absorbing Sponge Inside, Which Can Reduce The Buildup Of Oils Deposits Around The Rim Of The Hot Tub And Within The Filter Area..
[Easy To Use Hot Tub Sponge] Put The Hot Tub Scum Absorber In The Water Will Be Crystal Clear With No Scum Lines. You Can Leave It Float Freely Or Attach It To The Side Of The Tub With Suction Cup..
[4 In 1 Digital Salt Tds Ec Meter] There Are Various Purposes For The Salinity Tester. This Instrument Can Not Only Detect The Salt Content Of Saltwater Pool, And Koi Pond, But Also The Salinity Of Marine, Saltwater Fish Tank Salt Level Testing..

Features

  • [Accurate Salt Meter for Pool] This device makes quick work of testing pool water for salinity, so that can anticipate the changes in the salt levels daily and react accordingly. Perfect for maintaining a saltwater pool spa and hot tub.
  • [4 in 1 Digital Salt TDS EC Meter] There are various purposes for the salinity tester. This instrument can not only detect the salt content of saltwater pool, and koi pond, but also the salinity of marine, saltwater fish tank salt level testing.
  • [Hot Tub Accessories] The hot tub cleaning sponge will help keep hot tub and pool water looking great. The oil sponge hot tub oil absorber is built to last and a must have hot tub accessories.
  • [Easy to Use Hot Tub Sponge] Put the hot tub scum absorber in the water will be crystal clear with no scum lines. You can leave it float freely or attach it to the side of the tub with suction cup.
  • [Bubble and Scum Free] Portable hot tub scum absorbers are made of quality 3D mesh material, filled with quality scum absorbing sponge inside, which can reduce the buildup of oils deposits around the rim of the hot tub and within the filter area.
  • See more on Amazon...

Brand: ORAPXI

Amazon Price: $29.99 | as of 04/25/2024 (3:56am pst) *DETAILS
Availability: In Stock

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  #26

ORAPXI Pool Salt Tester for Hot Tub and Oil Absorbing Sponge for Pool Cleaner Hot Tub Sponge 4 Pack

Asin: B0D14H7ZKC

[Hot Tub Accessories] The Hot Tub Cleaning Sponge Will Help Keep Hot Tub And Pool Water Looking Great. The Oil Sponge Hot Tub Oil Absorber Is Built To Last And A Must Have Hot Tub Accessories..
[Easy To Use Salinity Tester] Clear Lcd Backlight And Instant Digital Result. Different Than Salt Strips, This Digital Tester Takes All The Guess Work Out Of The Equation. Super Easy To Read And Use With High Accuracy..
[Check Pool Salt Level] Salt Range:0~9990Ppm/10~100Ppt; Check The Salt Concentration Of Saltwater Pool And Hot Tub; Help Maintain The Pool Or Hot Tub Better For The Pool Owner..
[Premium Materials And Easy To Clean] The Sponge Is Soft To The Touch, Easy To Use, And Feature A Numerous Pore For Elasticity Surface. Simply Wash With Water Or Detergent And Air Dry To Restore To Original Condition For Reuse..

Features

  • [Reduce Body Oils from Hot Tub] Hot tub scum absorber does an excellent job absorbing oils from lotions/makeup from folks who use the hot tub. Help avoid the ring around the hot tub and any excessive foaming. Makes a tremendous difference in keeping the tub clean.
  • [Premium Materials and Easy to Clean] The sponge is soft to the touch, easy to use, and feature a numerous pore for elasticity surface. Simply wash with water or detergent and air dry to restore to original condition for reuse.
  • [Hot Tub Accessories] The hot tub cleaning sponge will help keep hot tub and pool water looking great. The oil sponge hot tub oil absorber is built to last and a must have hot tub accessories.
  • [Check Pool Salt Level] Salt range:0~9990ppm/10~100ppt; Check the salt concentration of saltwater pool and hot tub; Help maintain the pool or hot tub better for the pool owner.
  • [Easy to Use Salinity Tester] Clear LCD backlight and instant digital result. Different than salt strips, this digital tester takes all the guess work out of the equation. Super easy to read and use with high accuracy.
  • See more on Amazon...

Brand: ORAPXI

Amazon Price: $29.99 | as of 04/25/2024 (3:56am pst) *DETAILS
Availability: In Stock

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  #27

ORAPXI Digital Salinity Tester and Hot Tub Scum Absorber for Hot Tub Spa Pool

Asin: B0D14D4P8Y

[A Solution For Effortless Hot Tub Maintenance] Scum Eliminating Sponges Are Designed To Absorb Sunscreen, Lotion, Body Oils, Dust, Etc. Suitable For Pools, Hot Tubs, Or Spas..
[Wide Applications] There Are Various Purposes For The Salinity Tester. This Instrument Can Not Only Detect The Salt Content Of Saltwater Pool, And Koi Pond, But Also The Salinity Of Marine, Saltwater Fish Tank Salt Level Testing..
[Check Pool Salt Level] Salt Range:0~9990Ppm/10~100Ppt; Check The Salt Concentration Of Saltwater Pool And Hot Tub; Help Maintain The Pool Or Hot Tub Better For The Pool Owner..
[Premium Materials And Easy To Clean] The Sponge Is Soft To The Touch, Easy To Use, And Feature A Numerous Pore For Elasticity Surface. Simply Wash With Water Or Detergent And Air Dry To Restore To Original Condition For Reuse..

Features

  • [Reduce Body Oils from Hot Tub] Hot tub scum absorber does an excellent job absorbing oils from lotions/makeup from folks who use the hot tub. Help avoid the ring around the hot tub and any excessive foaming. Makes a tremendous difference in keeping the tub clean.
  • [Premium Materials and Easy to Clean] The sponge is soft to the touch, easy to use, and feature a numerous pore for elasticity surface. Simply wash with water or detergent and air dry to restore to original condition for reuse.
  • [A Solution for Effortless Hot Tub Maintenance] Scum eliminating sponges are designed to absorb sunscreen, lotion, body oils, dust, etc. Suitable for pools, hot tubs, or spas.
  • [Check Pool Salt Level] Salt range:0~9990ppm/10~100ppt; Check the salt concentration of saltwater pool and hot tub; Help maintain the pool or hot tub better for the pool owner.
  • [Wide Applications] There are various purposes for the salinity tester. This instrument can not only detect the salt content of saltwater pool, and koi pond, but also the salinity of marine, saltwater fish tank salt level testing.
  • See more on Amazon...

Brand: ORAPXI

Amazon Price: $29.99 | as of 04/25/2024 (3:56am pst) *DETAILS
Availability: In Stock

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  #28

Qcwwy Portable Handheld Salinity Refractometer for Seawater Aquarium, 0 28% Salinity Optical Refractometer

Asin: B0D135JNDS   |   Model: Qcwwyfs1xpkru7a   |   PartNumber: Qcwwyfs1xpkru7a   |   Ean: 7903686868724

[ Plate] The Cover Plate Protects The Prism, Ensuring Stable And Reliable Measurements Every Time..
[Complete Package] This Refractometer Comes With A Straw, Lens Cloth, Screwdriver, Manual, And A Plastic Box For Easy Storage And Transport..
[Easy To Use] Simply Place A Few Drops Of Distilled Water On The Testing Prism And Adjust The Zero Line To 0% Using The Calibration Screw. Then, Wipe The Prism And Start Testing..
[Clear And Convenient] The Large Display Ensures Clear Readings, And The Compact Size Makes It Easy To Carry And Use Wherever You Go..

Features

  • [PRECISE SALINITY MEASUREMENTS] Get accurate salinity measurements from 0-28% with this handheld refractometer.
  • [CLEAR AND CONVENIENT] The large display ensures clear readings, and the compact size makes it easy to carry and use wherever you go.
  • [ PLATE] The cover plate protects the prism, ensuring stable and reliable measurements every time.
  • [EASY TO USE] Simply place a few drops of distilled water on the testing prism and adjust the zero line to 0% using the calibration screw. Then, wipe the prism and start testing.
  • [COMPLETE PACKAGE] This refractometer comes with a straw, lens cloth, screwdriver, manual, and a plastic box for easy storage and transport.
  • See more on Amazon...

Brand: Qcwwy   |   Manufacturer: Qcwwy

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  #29

RZ Aquariums Salinity Refractometer for Seawater Marine Fish-Keeping, Dual Scales Specific Gravity Salinity Meter Hydrometer 0-100ppt & 1.000-1.070, Saltwater Tester with ATC Function

Asin: B07ZHZY2J1   |   Ean: 0799418089683   |   UPC: 799418089683

Atc Function: Salty Water Refractometer With Automatic Temperature Compensation, Allow You Obtain Accurate Readings Easier And Faster.
Easy To Use: Put 2-3 Drops On The Saltwater’S Prism, Towards Light Then To Get The Accurate Readings Through The Optic Eyepiece, Ideal For Replacement The Poor Quality And Difficult To Read Hydrometer Refractometer.
Salinity Refractometer Is Made Of Aluminum Body And Abs Rubber Light And Very Sturdy, Comes With A Hard Plastic Case, A Mini Screwdriver, A Dropper.
Seawater Refractometer Measures Saltwater Or Salinity Of Water, Ideal For Aquarium, Marine Monitoring, Fish-Keeping,Salty Pools&Spas And Etc..

Features

  • Measures on 2 Scales: Aquariums refractometer features Specific Gravity (D 20/20) 1.000-1.070sg and parts per thousand 0-100PPT (1 =1ppt=1000ppm)
  • Seawater refractometer measures saltwater or salinity of water, ideal for aquarium, marine monitoring, fish-keeping,salty pools&spas and etc.
  • ATC Function: salty water refractometer with automatic temperature compensation, allow you obtain accurate readings easier and faster
  • Salinity Refractometer is made of aluminum body and ABS rubber light and very sturdy, comes with a hard plastic case, a mini screwdriver, a dropper
  • Easy to Use: put 2-3 drops on the saltwater s prism, towards light then to get the accurate readings through the optic eyepiece, ideal for replacement the poor quality and difficult to read hydrometer refractometer
  • See more on Amazon...

Brand: NAZUSA   |   Manufacturer: RZ

Dimensions: 1.07 x 3.97 x 5.24 inches   |   Weight: 0.77 pounds

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  #30

GXSTWU Reptile Hygrometer Thermometer LCD Display Digital Reptile Tank Hygrometer Thermometer with Hook Temperature Humidity Meter Gauge for Reptile Tanks, Terrariums, Vivarium (2 Packs)

Asin: B07Z4Q5Y7C   |   Model: HY-2   |   PartNumber: HY-2   |   Ean: 0778469589854   |   UPC: 778469589854

Fantastic Value: This Accurate Reptile Thermometer And Hygrometer Allows You To Monitor The Temperature And Humidity In The Reptile Tanks At All Times To Makesure Your Beloved Reptiles Are In Perfect Health..
Quality Guaranteed: Our Carefully Sourced Range Of Thermometer Hygrometers Are Manufactured To The Highest Of Standards Our Customers Expect. And Provide 365 Days Warranty, In Case Of Any Quality Problems, Please Feel Free To Contact Us By Email, We Will Give You A Satisfactory Solution..
Fahrenheit Celsius Convertible: Temperature Can Be Display In Fahrenheit Or Celsius By Press The C/F Hole On The Back Of The Item With A Paper Clip..
Stylish Design: Stylish Looking Digital Vivarum Thermometer With Hook And Loop For Easy To Install To Any Reptile Tanks Or Terrariums. Comes With A Battery So You Can Use The Thermometer Immediately..

Features

  • 100% Brand New and High-Quality Reptile Tank Thermometer Hygrometer: Precise supervision of the temperature and air humidity in terrariums, vivariums and reptile tanks.
  • Stylish Design: Stylish looking digital vivarum thermometer with hook and loop for easy to install to any reptile tanks or terrariums. Comes with a battery so you can use the thermometer immediately.
  • Fantastic Value: This accurate reptile thermometer and hygrometer allows you to monitor the temperature and humidity in the reptile tanks at all times to makesure your beloved reptiles are in perfect health.
  • Fahrenheit Celsius Convertible: Temperature can be display in Fahrenheit or Celsius by press the C/F hole on the back of the item with a paper clip.
  • Quality Guaranteed: Our carefully sourced range of thermometer hygrometers are manufactured to the highest of standards our customers expect. And provide 365 days warranty, in case of any quality problems, please feel free to contact us by email, we will give you a satisfactory solution.
  • See more on Amazon...

Brand: GXSTWU   |   Manufacturer: Cangda Electronics Co., Ltd.

Dimensions: 1.30 x 2.08 x 0.67 inches

Amazon Price: $16.99 | as of 04/25/2024 (3:56am pst) *DETAILS
Availability: In Stock

See On Amazon




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