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Best Conductivity Meters & Accessories - Buying Guide

Last Updated: 12/14/2019

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Bestselling Conductivity Meters & Accessories on Amazon

  1. Professional TDS ppm Conductivity Meter - Quick and Easy EC TDS and Temperature Test Pen | 0-9999 pp...
  2. TDS Water Quality Tester - TDS, EC & Temperature Meter 3 in 1, 0-9999 ppm Meter, LCD Display,Digital...
  3. eSeasongear SALT-3050 Waterproof Tester, Digital Salinity PPM Temperature Meter for Salt Water Pool ...
  4. HM Digital TDS-3 Handheld TDS Meter With Carrying Case, 0 - 9990 ppm TDS Measurement Range, 1 ppm Re...
  5. Pro TDS Meter Digital Water Tester - 3 in 1 ppm EC and Temperature Test Pen | Easy to Use Water Puri...
  6. HM Digital 1000ppm TDS Calibration Solution
  7. ZeroWater ZT-2 Electronic Water Tester, Blue
  8. HM Digital 716160 COM-100 WATERPROOF PROFESSIONAL SERIES Combo Meter, 7", White/Purple
  9. Apera Instruments PH700 Benchtop Lab pH Meter, 0.01 pH Accuracy, 1-3 Points Auto Calibration, 3-in-1...
  10. KINCREA Water Quality Tester, Accurate and Reliable 0-9990ppm, EC Meter & Temperature Meter 3 in 1TD...

  #1

Professional TDS ppm Conductivity Meter - Quick and Easy EC TDS and Temperature Test Pen | 0-9999 ppm with 2% Accuracy | Perfect 3-in-1 Tester For Ro Water Aquarium Hydroponics Coffee Pool etc.

Model: 3-in-1 TDS&EC   |    Mpn: TDS & EC   |    Ean: 0646437729567   |    PartNumber: TDS & EC   |   Asin: B01FPG89CE

Health Metric Water Quality Tester: A Must For Any House Tool Kit! Do you think that your water filtration system needs replacement but you are not sure about it? Meet The Health Metric TDS-EC Meter, Designed To Answer Your Questions In The Most Accurate Way! This 3-in-1 water quality meter is designed to offer you readings with unmatched accuracy: TDS Meter: Measures Total Dissolved solids such as minerals, salinity, metals, cations or anions dissolved in water. EC Meter: Measures the electrical conductivity in a solution, with great applications on hydroponics, aquaculture and freshwater systems to monitor the amount of nutrients, salts, chlorine levels or other impurities in the water. Thermometer: Precise results from 0.1-80.0 C (32.0 -176.0 F). Unlike most similar instruments that measure just one or two of the above values, this smart tool analyses all the elements found in water, giving you significant and reliable results about its purity. A Versatile Tool That Saves You Money While Providing The Best For Your Health! With this smart pen you can check any time on your water filtration, or reverse osmosis system to see whether it's time to renew your filters or not, ensuring that you and your family won't be exposed to unhygienic drinking water. This meter can also be of great help for farmers or gardeners as they can maintain the correct level of nutrients in the solution, which is the key for growing plants. And if you have an aquarium, this meter is the best way to ensure that your exotic fish will grow healthy and survive. Don't Squander It - Order Today!

Features

  • QUICK AND EASY TO USE - Measure your water quality within seconds. Simply dip the meter into the water, gently stir, and lock the results on the screen. Our easy to follow instructions make this factory calibrated TDS meter super convenient to use, whether at home or on the go.
  • UP TO 20% BETTER ACCURACY: The advanced 3-in-1 smartpen combines TDS, EC, and a temperature meter for improved accuracy. With an Automatic Temperature Compensation and the measuring range of 0-9999 ppm +/- 2%, it is an extremely handy device to have around.
  • FREE TDS E-BOOK: As a special thank you, we will send you a free TDS Testing Guide (PDF) including useful tips and insights from qualified water experts. This will help you navigate the world of TDS testing with an ease.
  • EXCELLENT VALUE - Our TDS meter provides a cost-effective way to regularly measure the effectiveness of RO/DI systems, water quality in pools and aquariums, hydroponic nutrient balance and much more. The strong Titanium alloy probe keeps it functioning for years to come.
  • DEDICATED TEAM OF EXPERTS - You can always count on our team of EPA experts, with more than 30 years of expertise in the water quality industry. If you have any questions or problems, simply get in touch with us and we'll help you get it right.
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Brand: Health Metric   |   Manufacturer: Health Metric

Package Dimensions: 0.79 x 1.42 x 6.22 inches (2.0 x 3.6 x 15.8 cm)

Amazon Price: $15.85 | as of 12/14/2019(9:59pm pst)
Availibility: Usually ships in 24 hours
List Price: $34.97 | Used Price: $14.58

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  #2

TDS Water Quality Tester - TDS, EC & Temperature Meter 3 in 1, 0-9999 ppm Meter, LCD Display,Digital TDS Meter for Drinking Water Test,Swimming Pool, Aquarium Test, RO/DI Water, Hydroponics

Model: YL-TDS2-A   |    Mpn: YL-TDS2-A   |    Ean: 0680613789129   |    PartNumber: YL-TDS2-A   |   Asin: B07GNMY8ZH

CONCERNED ABOUT YOUR WATER QUALITY?
Hofun TDS Water Test Meter works like a guard who helps monitor water quality to tell you whether the water meets standards of drinking, aquarium, RO/OI system, etc, so that you have a clear mind of water status and take measures to guarantee water safety for your family.

WHAT IS TDS AND WHY SHOULD YOU CARE?
TDS = Total Dissolved Solids, which are the inorganic salts and organic matter in a liquid. The lower the TDS level, the purer the water is. Conversely, higher TDS levels indicates more particles dissolved in liquid.

YOUR FIRST CHOICE: HOFUN TDS METER
Hofun 3 in 1 TDS, EC &Temp meter is Super accurate, reliable and easy to use, it is also equipped with backlit and auto-lock function, ONE YEAR warranty and LIFETIME technical support.

A Must-Have Tool for Kitchen, Aquarium,etc.
The water test meter is the perfect tool for measuring and tracking TDS level of your water to check whether your water filter is doing its job and when to change the filter. With TDS water test meter, you can tell whether your water supplier is doing their job. All you need to do is to put it in the water and test.

FEATURES
* Automatic Temperature Compensation(ATC)
* Big backlit LCD for easy reading. Green for TDS 40; Red for TDS>40
*Auto-Off in 2 Minutes to conserve battery
* A colorful TDS chart on the back to explains ppm readings

SPECIFICATIONS
* Measuring Range:
TDS: 0 - 9990 ppm (parts per million)
Conductivity: 0 - 9990 s/cm
Temperature: 32.0 - 212 F (0 - 99 C)
* Accuracy: 2% F.S
* Size: 6.37 x 1.14 x 0.59 inches

PACKAGE
1x TDS Meter
1x Instruction
1x portable leather bag
1x color box

Features

  • [ RELIABLE TDS METER WITH ACCURATE & QUICK MEASUREMENT ] Equipped with premium quality titanium alloy probe, TDS water quality test meter enables quick and convenient test. Put the probe into water and LCD shows accurate TDS figure in seconds. In addition, advanced and reliable Automatic Temperature Compensation (ATC) ensures measurement accuracy, which reaches 0-9999ppm, making it fits multiple uses, drinking water test, swimming pool, laboratory, Hydroponics, aquarium, well water, etc.
  • [ BONUS 3 in 1 TDS, EC & TEMPERATURE METER ] Hofun 3 in 1 TDS, Electric Conductivity & Temperature Meter features the most updated technology. Three different measurement needs can be fulfilled by one meter. Not only been convenient for you, but also saves your time and money, absolutely a helpful kit for your life.
  • [ EASY READING BIG BACKLIT LCD DISPLAY & QUALIFIED WATER TELLER ] Hofun water quality test meter with Big Backlit LCD is far superior than most digital water quality tester display, which allows wider angles of data reading and night reading. Besides, Red backlight ( ppm figure over 40 ) means non-drinking water. Green backlight ( ppm figure below 40 ) indicates TDS figure qualified for direct drinking water (Notes: International standard adopted TDS figure 40 as a dividing line.)
  • [ EASY OPERATION & ENERGY SAVING ] Hofun ppm meter allows one button operation, turn it on and put it into water, you can get your desired data in seconds. Besides, there is a chart at the back of this test meter for figure reference.
  • [ HIGH QUALITY TDS METER] Hofun water quality test meter is manufactured under extra high standards and of excellent quality. Thus we have absolute confidence of our water test meter.
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Brand: Hofun   |   Manufacturer: Hofun

Item Dimensions: 0.6 x 1.2 x 6.4 inches (1.5 x 3.0 x 16.3 cm)   |   Package Dimensions: 1.4 x 1.7 x 6.8 inches (3.6 x 4.3 x 17.3 cm)

Amazon Price: $12.99 | as of 12/14/2019(9:59pm pst)
Availibility: Usually ships in 24 hours
List Price: $21.99

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  #3

eSeasongear SALT-3050 Waterproof Tester, Digital Salinity PPM Temperature Meter for Salt Water Pool and Koi Fish Pond

Model: SALT-3050   |    Ean: 0647608367427   |   Asin: B01BXDTSXW

eSeasongear SALT-3050 Waterproof IP65 Digital Salt Salinity Temperature Meter Tester *** Works ONLY for Salt Water Pool and Koi Fish Pond Salt level testing! *** Will NOT work for Sea/Marine/Salt Water Fish Tank Salt level testing! *** Will NOT work for Food salt level testing! *** Will NOT work for any other application! *** Salt Range: 0-5000ppm or 0-5.0 ppt; Temperature Range: 0-55 C or 32-130 F *** Waterproof Rating: IP65; Do not drop the meter into water since it is not rated to the IP-67. *** The SALT-3050 is precalibrated at 3000ppm salt for pool and pond testing. *** This meter is better than the KoiMedic Koi Medic Salt Meter - Electronic Pond Water Salt Level Tester. *** The 3000ppm calibration solution is available if needed for recalibration. *** eSeasongear is a registered trademark of All Water Care, Inc.

Features

  • Precalibrated at 3000 ppm salt (NaCl) at 25 C / 77 F
  • Built-in ATC sensor for automatic temperature compensation
  • Built-in salt (NaCl) conversion factor for meter calibration
  • Salt Range: 0-5000 ppm or 0.0-0.5 %
  • Temperature Range: 0-55 C or 32-130 F; Waterproof Rating: IP65
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Brand: eSeasonGear   |   Manufacturer: eSeasongear

Package Dimensions: 1.57 x 2.05 x 7.87 inches (4.0 x 5.2 x 20.0 cm)

Amazon Price: $39.99 | as of 12/14/2019(9:59pm pst)
Availibility: Usually ships in 24 hours
List Price: $39.99

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  #4

HM Digital TDS-3 Handheld TDS Meter With Carrying Case, 0 - 9990 ppm TDS Measurement Range, 1 ppm Resolution, +/- 2% Readout Accuracy

Model: TDS-3   |    Mpn: TDS-3   |    Ean: 0826333000001   |    PartNumber: TDS-3   |   Asin: B000VTQM70

Product Description: A TDS meter (aka ppm pen, nutrient tester, tds stick) is an inexpensive and convenient digital tool to instantly check your overall water quality. TDS = Total Dissolved Solids, which is any salt, metal or mineral in the water. With the push of a button, the TDS-3 can tell you your overall water purity level, which will be displayed on the screen in ppm (parts per million). The lower the TDS level, the purer the water, with 0 ppm being pure H2O. The TDS-3 is great for checking your tap water quality, or knowing when to change a filter. (The meter does not test for biological contaminants.) The TDS-3 is a great tool for drinking water, water filtration and purification, colloidal silver, hydroponics (test your nutrients), aquariums, RO/DI systems, pools and spas, commercial and industrial applications and more. The TDS-3 is a rugged model that includes a protective carrying case. This is the world's most popular handheld TDS meter for industry professionals.

Features

  • Its Ideal for Commercial Use
  • Its Includes a Carrying Case with Belt Clip
  • Hold Function: Saves Measurements for Convenient Reading and Recording
  • Highly Efficient and Accurate Due to Its Advanced Microprocessor Technology
  • Built-in Digital Thermometer, Display: Large and Easy-to-read LCD Screen.
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Brand: HM Digital   |   Manufacturer: HM Digital

Item Dimensions: 1 x 1.5 x 6 inches (2.5 x 3.8 x 15.2 cm)   |   Package Dimensions: 1 x 2 x 7 inches (2.5 x 5.1 x 17.8 cm)

Amazon Price: $12.56 | as of 12/14/2019(9:59pm pst)
Availibility: Usually ships in 1-2 business days
List Price: $14.99 | Used Price: $11.32

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  #5

Pro TDS Meter Digital Water Tester - 3 in 1 ppm EC and Temperature Test Pen | Easy to Use Water Purity Tester | Ideal for Testing RO Drinking Water Swimming Pool Hydroponics Aquarium & More

 Ean: 0304369529500   |    PartNumber: TDS-2   |   Asin: B07V7YZX81

GET YOUR WATER QUALITY READINGS IN SECONDS

This meter shows the Total Dissolved Solids (TDS), Electrical Conductivity (EC), Temp F, and Temp C of any liquid within just a few seconds. The new temperature sensor and titanium alloy electrodes make this factory-calibrated meter give you TDS or EC readings straight out of the box.

All you need to do is dip the meter in water, give it a stir, and watch the numbers lock in on the easy-to-read backlit LCD screen. You'll then get an idea of what your water quality is really like.

THE CLOSEST THING TO LAB-QUALITY RESULTS FROM HOME

Even though no TDS meter can replicate the accuracy of an expensive laboratory instrument, it's ideal for getting a close estimation.

Specifications:
- TDS: 0-9999 ppm
- Conductivity: 0-9990 s/cm
- Temperature range: 32-176 F and 1-80 C.
- Battery: 1 x 3V Button Cell CR2032
- Conversion factor: NaCl
- Auto data-hold: lock and record readings
- Auto-off function for extended battery life
- FREE protective leather bag


Factory calibrated with manual calibration capability!

CHECK THE QUALITY OF YOUR WATER FOR MANY APPLICATION

The great thing about this meter is that it works for almost any type of water testing you have in mind:

-RO/DI systems and zero water
-Nutrient levels in hydroponic setups
-Aquariums or fish tanks
-Swimming pools, hot tubs, and spas
-Many more

NOTE: No TDS meter can be used to test water hardness. Look for further explanation in the guide.

Features

  • OUR SIMPLEST, FASTEST TDS METER YET - Just dip in the meter, stir, and get your results in seconds. No calibration or setup needed, you can use it straight out of the box. Follow the step-by-step instructions then check the easy-to-read screen.
  • UPGRADED ACCURACY THAT LASTS - With the titanium alloy probe and the latest sensors, you can get almost exact readings every time. What's more, the meter can be easily recalibrated for extended precision whenever needed.
  • SUITABLE FOR ANY TYPE OF TDS OR EC TESTING - Check the TDS or EC of your aquarium, pool, or any water source. You can determine the effectiveness of your RO, DI, or distillation unit, check the nutrient levels of your hydroponic setup, and more.
  • RESULTS YOU CAN UNDERSTAND - Your free (opt-in only) emailed user guide explains exactly what the results mean, and what you may want to do about them. If you have any questions, just ask our team of EPA water quality experts. We're here to help!
  • SAVE THE MONEY AND HASSLE - Instead of forking out for an expensive lab test or professional equipment, you can get reliable results from home. This ppm meter can also be taken anywhere with you in the free leather case, ready to test on the go.
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Brand: Health Metric   |   Manufacturer: Health Metric

Package Dimensions: 1.1 x 1.5 x 6.2 inches (2.8 x 3.8 x 15.7 cm)

Amazon Price: $12.99 | as of 12/14/2019(9:59pm pst)
Availibility: Usually ships in 24 hours
List Price: $21.99

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  #6

ZeroWater ZT-2 Electronic Water Tester, Blue

Model: TDSmeter-20   |    Mpn: ZT-2   |    Ean: 0735343744457   |    PartNumber: ZT-2   |   Asin: B002UUTAI6

Features

  • Easy To Use
  • Measure total dissolved solids in water
  • Know exactly when to change filters
  • Compare water samples
  • GET THE LEAD OUT: ZeroWater filters are the only pour-through filters NSF Certified to remove chromium & lead. Our pitchers, tumblers, & dispensers remove virtually all solids for the purest tasting water.
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Brand: ZeroWater   |   Manufacturer: Zero Technologies, LLC

Item Dimensions: 5 x 7 x 6 inches (12.7 x 17.8 x 15.2 cm)   |   

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  #7

HM Digital 716160 COM-100 WATERPROOF PROFESSIONAL SERIES Combo Meter, 7", White/Purple

Model: 716160   |    Mpn: COM-100   |    Ean: 5060300980513   |    PartNumber: COM-100   |   Asin: B000VVVEUI

OM-100 Features: -Combo meter.-Electrical Conductivity Range: 0 - 9990 ?S; 0 - 9.99 Ms..-TDS Range: 0 - 8560 ppm (mg/L); 0 - 8.56 ppt..-Temperature Range: 0-80 degrees C; 32-176 degrees F..-Resolution: 0-99: 0.1 ?S/ppm/MS/ppt; 100-999: 1 ?S/ppm; 1000-9990: 10 ?S/ppm..-Temperature resolution is 0.1 degrees C/Accuracy: +/- 2pct..-EC to TDS Conversion Factor: Non-linear conversions for KCl, 442TM or NaCl solutions, selected by user..-Calibration: Digital calibration by push button..-Probe: Detachable platinum electrodes.. Includes: -Power source: 3 x 1.5V button cell batteries (included) (model 357A).. Specifications: -Housing: IP-67 Waterproof.. Dimensions: -Dimensions: 7.3'' H x 1.3'' W x 1.3'' D (18.5 x 3.4 x 3.4 cm)..-Weight: 0.20 Pounds (3.2 oz).-Overall dimensions: 9'' H x 3'' W x 2'' D.

Features

  • Measures electrical conductivity (EC)
  • Measures total dissolved solids (TDS)
  • Measures temperature.
  • Waterproof housing.
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Brand: HM Digital   |   Manufacturer: HM Digital

Item Dimensions: 2 x 3 x 9 inches (5.1 x 7.6 x 22.9 cm)   |   Package Dimensions: 2.2 x 3.3 x 9.4 inches (5.6 x 8.4 x 23.9 cm)

Amazon Price: $39.85 | as of 12/14/2019(9:59pm pst)
Availibility: Usually ships in 24 hours
List Price: $57.26

Warranty: 1 YEAR WARRANTY

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  #8

Apera Instruments PH700 Benchtop Lab pH Meter, 0.01 pH Accuracy, 1-3 Points Auto Calibration, 3-in-1 pH/Temp. Electrode

Model: AI501   |    Mpn: AI501   |    Ean: 0858718006162   |    PartNumber: AI501   |   Asin: B01N43WRY1

The Apera Instruments pH700 benchtop pH meter provides quick and stable pH readings for basic laboratory testing and educational purposes at an outstanding cost-effectiveness. Reliable measurement: with its quality 3-in-1 combination pH electrode and the advanced digital processing technology, the measuring of pH and temperature is quick, accurate and stable (accuracy: 0.01 pH, range: 0 to 14.00 pH). splash-proof and dust-proof structure design, ideal for use in harsh environment. Intelligent functions: quick& easy auto calibration: automatically recognizes 6 types of pH standard solutions. 0 to 100 c auto temperature compensation. 50 groups of data storage. Max/min measuring mode available, alternately displaying the maximum and minimum readings. Comes with an easy-to-install electrode holder and 3 bottles of premixed pH calibration solutions (4.00, 7.00, 10.01). the product is CE certified and comes with a two-year warranty for the meter; 6 months for the electrode. Model

PH700

pH

Measuring Range

(0 to 14.00) pH

Resolution

0.1/0.01 pH

Accuracy

0.01 pH 1 digit

Stability

0.01 pH/3h 1 digit

Temperature Compensation

(0 to 100) C (32 to 212 F) Auto or Manual

Calibration

1 to 3 points auto calibration

mV

Measuring Range

1999 mV

Resolution

1 mV

Accuracy

0.1% F.S 1 digit

Temperature

Measuring Range

0 to 100.0 C (32.0 to 212 F)

Resolution

0.1 C; 0.1/1 F

Accuracy

0.5 C 1 digit

Others

Data Storage

50 groups

Storage Content

Numbering, measurements, unit, temperature, and status of temperature compensation

Power Supply

DC9V/300mA

IP Rating

IP54 splash-proof and dust-proof

Dimensions and Weight

(9.5 9.3 4) inches / 2.2 pounds;

With case: (12*10*5) inches / 3 pounds



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Features

  • Equipped with 201T-F 3-in-1 combination pH electrode, Auto temp. Compensation, measuring pH and temperature simultaneously
  • Advanced Auto. calibration mode with calibration guide and self-diagnosis
  • Advanced digital processing technology helps generate quick and Stable readings
  • Comes with an easy-to-install electrode holder and pre-mixed calibration solutions
  • IP54 spill-proof and dust-proof, durable and reliable; 50 Groups of data storage
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Brand: Apera Instruments, LLC   |   Manufacturer: Shanghai Sanxin Instrumentation

Item Dimensions: 4 x 9.3 x 9.5 inches (10.2 x 23.6 x 24.1 cm)   |   Package Dimensions: 3.11 x 9.88 x 11.81 inches (7.9 x 25.1 x 30.0 cm)

Amazon Price: $268.25 | as of 12/14/2019(9:59pm pst)
Availibility: Usually ships in 24 hours
List Price: $268.25

Warranty: Two-Year limited warranty for the instrument, Six-Month limited warranty for the electrode(s).

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  #9

KINCREA Water Quality Tester, Accurate and Reliable 0-9990ppm, EC Meter & Temperature Meter 3 in 1TDS Meter JR021

Model: B07NNYPQ3L   |    Mpn: JR021   |    Ean: 6932083859050   |    PartNumber: JR021   |   Asin: B07NNYPQ3L

Packing list:
3 in 1 TDS Meter, Accurate Water Quality Tester with Backlit Screen, TDS, EC and Temperature Between 0-9999 ppm Portable Water Tester with ATC for Drinking Water, Aquariums, Water Test Kit

Super accurate, reliable and easy to use TDS, EC &Temp water tester reader, with backlit and auto-lock function, 12 month warranty .
This advanced digital ppm meter pen with Advanced Microprocessor Technology, combines TDS Meter(Total Dissolved Solids), EC Meter(Electrical Conductivity) and Temperature meter all in one ergonomically designed pen.

Widely be used for all Water Quality Testing, Water Purification Applications, Aquaculture, Hydroponic, Pool & Spa, Colloidal Silver, Water Treatment and more.
It s a must have handy tool for every household, testing for tap water, filtered water, distilled water, bottled water, well water, refrigerated water, etc.

Features:
* Automatic Temperature Compensation(ATC)
* Equipped with backlit LCD for easy reading.
If TDS 40, the backlit color is green,
If TDS>40, the backlit color is red.
* Auto-Lock Function: From test beginning, the reading can be stabilized in seconds, and locked automatically for easy read and record.
* Hold Function: Before reading locked automatically, the reading can be locked manually if press HOLD .
* Factory Calibrated: No need calibration by user.
* Auto-Off in 5 Minutes to conserve battery.
* A colorful TDS chart on the back to explains ppm readings.
* Includes a protective carrying case with belt clip, easy to carry.
Specifications:
* Measuring Range:
TDS: 0 - 9990 ppm (parts per million)
Conductivity: 0 - 9990 s/cm
Degrees Celsius: 0 - 50.0 C The maximum relative temperature is 95%
Fahrenheit: 32.0 - 122.0 F
* Accuracy: 2% F.S
* Net Weight:1.62oz(46g)
* Size:6.37 x 1.14 x 0.59 inches (162x29x15mm)

Features

  • High Accuracy With premium quality titanium alloy probe and ACT(Automatic Temperature Compensation) function, the water quality tester reads accurately at various temperatures.
  • 3 in 1 Function This TDS meter can test TDS EC and temperature. Its measuring range of TDS is 0-9999 ppm with accuracy: 2%, while the EC range 0-9999 us/cm and the temp range is 32. 0-212 F- 0-99. 0 C with accuracy 0. 1 .
  • Auto Hold and Turn Off The reading result will be auto-locked on LCD in seconds. To safe the power supply, the water tester will shut down automatically after 5 minutes stand by.
  • Upgrade LCD Backlit Display Unlike traditional screen, the water tester designed with advance LCD backlit display, which is easier and clearer to be read. KINCREA product includes 1 year .
  • Compact Design Come with a leather case, this TDS meter is portable to be carry away. You can test water anywhere to get the purest drinking water.
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Brand: KINCREA   |   Manufacturer: KINCREA

Package Dimensions: 1.2 x 1.6 x 6.5 inches (3.0 x 4.1 x 16.5 cm)

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  #10

TEDCO Toys Sensor Stick

Model: 10166   |    Mpn: 10166   |    Ean: 0043067101662   |    PartNumber: 10166   |   Asin: B013PQDK0C

The Sensor Stick lets you experience first hand the science of electricity and circuits. Use your hands and the Sensor Stick to open and close your human circuit. Long-lasting LED lights flash and a buzzer buzzes when the circuit is closed; open the circuit and the electricity stops! Learn about electricity, circuits, conductors, electrons, and more!

Features

  • Experience the science of electricity and circuits first hand with your Sensor stick and learn about electricity, circuits, conductors, electrons and more!
  • Just place one hand on the top silver bar and the other at the bottom; the long-lasting LED lights flash while the buzzer buzzes!
  • You've just closed the circuit allowing electricitiy to folow from one hand, through the tube, to your other hand and body
  • Yes, you are a human circuit!; remove one hand and you've opened the circuit and the electrical supply is turned off
  • Suitable for Age 6+; Size: 4 x 9.75 x 1.5 inches
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Brand: TEDCO   |   Manufacturer: Tedco

Item Dimensions: 9.88 x 4 x 1.38 inches (25.1 x 10.2 x 3.5 cm)   |   Package Dimensions: 1.4 x 2.2 x 7.8 inches (3.6 x 5.6 x 19.8 cm)

First Available: 2018-06-06

Amazon Price: $9.03 | as of 12/14/2019(9:59pm pst)
Availibility: Usually ships in 24 hours
List Price: $20.16

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  #11

HM Digital Triple Inline RO/DI TDS Monitor with 1/4 inch T-Fittings

Model: TRM-1   |    Mpn: TRM-1   |    Ean: 0891144000243   |    PartNumber: TRM-1   |   Asin: B00GKLD5QY

The TRM-1 is a unique monitor offering the user 3 points of contact during the filtration process. This TDS monitor allows for checking TDS levels at 3 points, such as with DI/RO (deionization / reverse osmosis), or multiple points in an RO system, and more.

Features

  • Displays TDS levels of the three sensing points with electrode probes
  • Comes equipped with Mur-lok Quick-Connect T-fittings (standard is 1/4 fittings)
  • Auto-Off function conserves battery power. The unit shuts off automatically after 10 minutes of non-use.
  • Dual Range 0-9990 ppm (From 0 - 999 ppm the resolution is 1 ppm. From 1000 to 9990 ppm, the resolution is 10 ppm, indicated by a blinking 'x10' image.)
  • Factory Calibrated: calibrated with a 342 ppm NaCl solution. Meters can be recalibrated with a mini-screwdriver.
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Brand: HM Digital   |   Manufacturer: HM Digital

Item Dimensions: 1.42 x 4.25 x 5.98 inches (3.6 x 10.8 x 15.2 cm)   |   Package Dimensions: 1.42 x 4.25 x 5.98 inches (3.6 x 10.8 x 15.2 cm)

Amazon Price: $39.25 | as of 12/14/2019(9:59pm pst)
Availibility: Usually ships in 24 hours
List Price: $39.26

Warranty: 1 year

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  #12

HM Digital 1000ppm TDS Calibration Solution

Model: 716170   |    Mpn: C1000   |    Ean: 0891144000038   |    PartNumber: C1000   |   Asin: B001FD6WZ8

For optimal performance, re-calibrate your meters periodically or if testing TDS or conductivity levels in wide or different ranges

Features

  • For optimal performance, re-calibrate your meters periodically or if testing TDS or conductivity levels in wide or different ranges
  • NaCl calibration solution
  • Comes in lightweight HDPE plastic bottles
  • Laboratory quality NIST-traceable solutions
  • Any brand TDS meter can be calibrated to any brand of calibration solution
  • Bottles have a convenient wide mouth, allowing a user to simply insert the meter into a stable bottle
  • Sealed with coated foam liner
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Brand: HM Digital   |   Manufacturer: HM Digital Meters

Item Dimensions: 1.3 x 3.3 x 1.3 inches (3.3 x 8.4 x 3.3 cm)   |   Package Dimensions: 1.5 x 2.1 x 3.7 inches (3.8 x 5.3 x 9.4 cm)

Amazon Price: $3.50 | as of 12/14/2019(9:59pm pst)
Availibility: Usually ships in 24 hours
List Price: $8.28

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  #13

Worldoor LCD Digital TDS Meter Tester Water Quality Ppm Purity Filter Portable Pen Type TDS Tester(TDS Tester)

Model: 400103-00020   |    Mpn: 400103-00020   |    Ean: 0705586458084   |    PartNumber: 400103-00020   |   Asin: B007VK4YY0

LCD Digital TDS Meter Tester Water Quality Ppm Purity Filter (TDS Tester)

Features

Brand: Worldoor   |   Manufacturer: Worldoor

Package Dimensions: 1 x 1.1 x 5.4 inches (2.5 x 2.8 x 13.7 cm)

Amazon Price: $7.99 | as of 12/14/2019(9:59pm pst)
Availibility: Usually ships in 1-2 business days
List Price: $7.99 | Used Price: $3.79

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  #14

TDS Meter, Water Quality Tester Filter Pen, Accuracy Testing Water Quality for Drinking Water Purity Test, Swimming Pools, Aquariums, Etc.

 Ean: 0611355890996   |    PartNumber: TDS-3   |   Asin: B07QDRWSWS

TDS Measurement Range: 0-9990 ppm
Color: Light Grey
Readout Accuracy: +/- 2%
Temperature range: 0-50 C
Batteries: 2 X LR44 batteries required.(included)
Size: 6.1"*1.2"*0.9"
Weight: 60g
Packaging: Leather bag

How to use:
1.Take off the protective cap and press the ON/OFF switch.
2.Immerse the meter electrode into the water until the immersion line.
3.Gently agitate the TDS meter to remove bubbles.
4.Waiting for the reading is stable in 5 seconds,press the hold key and check the reading.
5.After using,dry the test pen,press ON/OFF for 3 seconds and it will shut down,then put the cap back on it.

Temperature Test Instructions:
1.Remove the TDS pen cover and use it in liquid or air.
2.Pressing the TEMP key,the display will convert to a Celsius display,press the key again to convert to Fahrenheit temperature test,then press the key third time to return to water quality test.

Influence factor
1.Water temperature:TDS meter pen can not to measure the hot water bodies.
2.The velocity of water flow:TDS pen can not to measure the large velocity of water flow.
3.Area:TDS values vary from region to region and city to city due to different pipelines and water sources.

TDS In PPM
Distilled water TDS value: 0 ppm
Purified water TDS value: 10 ppm
Spring water TDS value: 100-200 ppm
Tap water TDS value: 100-250 ppm
Pure alcohol TDS value: 0 ppm
Warning
Avoid immersing the TDS pen in water, avoid direct light and high temperature, avoid impact and drop down.

Features

  • Highly efficient and accurate due to its advanced microprocessor technology, one measurement can be completed within 5 seconds.
  • Built-in Digital Thermometer, Display: Large and Easy-to-read LCD Screen.
  • Long battery life cycle: It's used with 2pcs 1.5V batteries, can use more than 3 years, it will be power-off automatically after stop using in 5 minutes to save the battery.
  • High accuracy: +/- 2% Readout Accuracy Testing, the titanium alloy probe has high test accuracy, which can avoid the interference of magnetic field in water.
  • Imported High-Quality Clip, warranty 3 years.
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Brand: KOMITASUI   |   Manufacturer: KOMITASUI

Item Dimensions: 0.9 x 1.2 x 6.1 inches (2.3 x 3.0 x 15.5 cm)   |   Package Dimensions: 1.1 x 1.3 x 6 inches (2.8 x 3.3 x 15.2 cm)

Amazon Price: $7.99 | as of 12/14/2019(9:59pm pst)
Availibility: Usually ships in 24 hours
List Price: $7.99

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  #15

Extech PH100 ExStik pH Waterproof Meter

Model: PH100   |    Mpn: PH100   |    Ean: 5053184545480   |    PartNumber: PH100   |   Asin: B00023RYQ8

Exstick Ph Meter, Ph Range 0. 00 To 14. 00, Waterproof Yes, Automatic Temperature Compensation Yes, Displayed Temperature Range 23 To 194 Degrees F, -5 To 90 Degrees C, Operating Temp. Range (F) 23 To 194 Degrees , Operating Temp. Range (C) -5 To 90 Degrees , Display Dual Line Lcd, Auto Power Off Yes, Memory Stores 15 Labeled Readings, Temperature Compensation Range Yes, Calibration 1, 2 Or 3 Pt. , Includes Built-In Smart Chip Predicts Ph Electrode Performance With Renew Indicator

Features

  • Flat surface pH electrode is waterproof and rugged enough to withstand harsh environments
  • LCD display shows pH from 0.00 to 14.00, temperature and bargraph of trends in acidity or alkalinity; device stores and recalls up to 15 labeled readings
  • RENEW feature tells you when it and' time to replace your pH electrode
  • CAL feature tells you when it and time to recalibrate your meter
  • Includes meter, protective sensor cap, sample cup, 4 SR44 button batteries and 1 48 Inch (1.2 meter ) neck strap
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Brand: Extech   |   Manufacturer: Extech Instruments

Item Dimensions: 1.4 x 1.6 x 6.8 inches (3.6 x 4.1 x 17.3 cm)   |   Package Dimensions: 2 x 2.8 x 9.2 inches (5.1 x 7.1 x 23.4 cm)

Amazon Price: $71.99 | as of 12/14/2019(9:59pm pst)
Availibility: Usually ships in 24 hours
List Price: $99.99 | Used Price: $55.51

Warranty: 1 year (meter only)

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  #16

LaMotte 1749 Salt/TDS/Temperature TRACER PockeTester, 1.6" W x 7.4" L x 1.6" H

Model: 1749   |    Mpn: 1749   |    Ean: 9876546513127   |    PartNumber: 1749   |   Asin: B00BT13RRM

LaMotte 1749 Salt/TDS/Temperature TRACER PockeTester, 1.6" W x 7.4" L x 1.6" H

Features

  • Auto Power Off After 10 minutes of no button presses
  • 0 to 199.9 S, 200 to 1999 S, 2.00 to 19.99 mS Conductivity Range
  • 0 to 99.9 ppm and mg/L, 100 to 999 ppm and mg/L, 1.00 to 9.99 ppt and g/L TDS Range
  • 0 to 99.9 ppm S, 100 to 999 ppm S, 1.00 to 9.99 ppt S Salinity Range
  • See more on Amazon...

Brand: LaMotte   |   Manufacturer: LaMotte

Item Dimensions: 2.2 x 2.7 x 9 inches (5.6 x 6.9 x 22.9 cm)   |   Package Dimensions: 2.2 x 2.8 x 9.1 inches (5.6 x 7.1 x 23.1 cm)

Amazon Price: $93.15 | as of 12/14/2019(9:59pm pst)
Availibility: Usually ships in 24 hours
List Price: $104.00

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  #17

HM Digital COM-80 Electrical Conductivity (EC) and Total Dissolved Solids Hydro Tester, 0-5000 ppm TDS Range, 1 ppm Resolution, 2% Readout Accuracy

Model: HMDCOM80   |    Mpn: COM-80   |    Ean: 0891144000229   |    PartNumber: COM-80   |   Asin: B008SOPO10

Product Description: NEW! The COM-80 is an economically priced, reliable EC/TDS meter (ppm pen / nutrient tester) that is ideal for testing applications such as hydroponics & gardening, pools & spas, aquariums & reef tanks, water ionizers, drinking water and more. Also great for commercial applications, such as boilers and cooling towers and filtration and purification systems.

Features

  • Measures electrical conductivity (EC), TDS and temperature.
  • Automatic Temperature Compensation (ATC)
  • Hold button and Auto shut-off
  • Digital Calibration (push button)
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Brand: HM Digital   |   Manufacturer: HM Digital

Item Dimensions: 1.3 x 0.6 x 6 inches (3.3 x 1.5 x 15.2 cm)   |   Package Dimensions: 0.9 x 4.9 x 8.6 inches (2.3 x 12.4 x 21.8 cm)

Amazon Price: $28.46 | as of 12/14/2019(9:59pm pst)
Availibility: Usually ships in 24 hours
List Price: $28.50 | Used Price: $24.99

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  #18

Myron L PT1 Pocket Tester Pen, Conductivity, TDS, Salinity, Temperature

Model: PT1   |    Mpn: PT1   |    PartNumber: PT1   |   Asin: B015JPAC26

This instrument is designed to be extremely accurate, fast and simple to use in diverse water quality applications. Advanced features include the ability to select from 3 different solution types that model the characteristics of the most commonly encountered types of water; proprietary temperature compensation and TDS conversion algorithms; highly stable microprocessor-based circuitry; user-intuitive design; and waterproof housing. A true, one-handed instrument, the PT1 is easy to calibrate and easy to use. To take a measurement, you simply press a button then dip the pen in solution. Results display in seconds.

Features

  • Accuracy of 1% of READING .2% at calibration point
  • Auto ranging
  • High capacity N-type battery included
  • Simple one button function
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Brand: Myron L   |   Manufacturer: Myron L

Package Dimensions: 0.8 x 5.5 x 11.3 inches (2.0 x 14.0 x 28.7 cm)

Amazon Price: $149.02 | as of 12/14/2019(9:59pm pst)
Availibility: Usually ships in 24 hours
List Price: $173.50

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  #19

Oakton AO-00653-18 Oakton Conductivity and TDS Standard, 1413 s; 500 mL

Model: AO-00653-18   |    Mpn: AO-00653-18   |    PartNumber: AO-00653-18   |   Asin: B01MS6HNT9

Kcl, NaCl and 442 conversions printed on the bottle for ease of use (excluded on 60-ml bottle, but included in insert) temperature corrections are printed on the bottle, with certified values listed in tables and referenced to 25 degree C (excluded on 60-ml bottle, but included in insert) manufactured under ISO 9000 quality guidelines and traceable to NIST standards If unopened, shelf life is 1 year conductivity options range from 1 s/cm to 200, 000 s/cm ideal for laboratory and field analysis all Oakton conductivity and TDS standards are traceable to NIST standard reference materials solutions help you calibrate conductivity instruments to ensure accuracy standard values given at 25 degree C use when readings are expected to be around 1413 s/cm.

Features

  • Description: conductivity and tds standard, 1413 s; 500 ml
  • Resistivity value (mom):
  • Volume (ml): 500
  • Volume (oz): 16.9
  • Conductivity-to-tds calibration values (ppmnacl): 702.1
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Brand: Oakton   |   Manufacturer: COLE-PARMER

Package Dimensions: 3.03 x 3.07 x 6.1 inches (7.7 x 7.8 x 15.5 cm)

First Available: 2018-09-14

Amazon Price: $13.60 | as of 12/14/2019(9:59pm pst)
Availibility: Usually ships in 24 hours
List Price: $23.02

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