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Best Differential Pressure Gauges - Buying Guide

Last Updated: 08/22/2019

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  #1

Watts Backflow Test Kit TK9A PRO Equipped with Free Line Pressure Gauge

 Ean: 7426928250441   |    PartNumber: tk9a   |   Asin: B07H1XP2SG

Watts TK9A PRO backflow test kit equipped with a FREE Line Pressure Gauge. The Watts TK9A PRO backflow test kit is used by certified backflow testers for testing all makes, models and sizes backflow preventer assemblies, including irrigation, domestic, isolation, containment and fire. The Watts TK9A backflow test kit ships fully assembled and with everything needed to start testing right away: hoses, adapters, calibration certificate and carrying case. Try it FREE for 30 days. You have nothing to lose - Love it or Leave it with our 30-Day Money Back Guarantee...5 Year Warranty...FREE Shipping and FREE Returns...In stock - ships in 1 day...Calibration certificate valid for one year... 3-valve backflow test kit for testing the following domestic, irrigation and fire-line backflow preventer assemblies: Reduced Pressure Zone (RPZ)...Double Check Valve (DC)...Pressure Vacuum Breaker (PVB)...Spill-resistant Pressure Vacuum Breaker (SPVB)...Reduced Pressure Detector Assembly (RPDA)...Double Check Detector Assembly (DCDA)...Standard 3-valve configuration (high, low, bypass)...4.5" Differential Pressure Gauge; scale: 0 -15 PSID..Equipped with FREE Line Pressure Gauge for recording system pressure, now required by most water purveyors; scale: 0-160 PSI...Full set test cock adapters: (3) 1/8" (3) 1/4" (3) 1/2" (total of 9)...Full set 36" Backflow Test Hoses: (3) color-coded (red, yellow and blue) with ergonomic knurled swivel couplings for easy on and off without tools...Standard operating 3-valve procedure capable of all test procedures... Maximum Working Temperature: 210 F...Maximum Working Pressure: 175 PSI...Ships fully assembled with calibration certificate valid for 1 year - start testing right out of the Aluminum, foam-lined Instrument Carrying Case...Try it FREE For 30 Days. This might change your mind. The Watts TK9A comes with a 30-Day Money Back Guarantee, if you don't love it, return it - no sweat, we'll even pay your return shipping!

Features

  • Watts TK9A Backflow Test Kit PRO Model with FREE Line Pressure Gauge
  • Equipped with FREE Line Pressure Gauge, a $50 Value!
  • Everything included to start testing right away
  • FREE testcock adapters, carrying case and backflow test hoses
  • FREE Calibration Certificate Valid for 1 YR
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Brand: TK9A   |   Manufacturer: Watts TK9A

Item Dimensions: 5 x 12 x 9 inches (12.7 x 30.5 x 22.9 cm)   |   Package Dimensions: 5.08 x 9.57 x 12.4 inches (12.9 x 24.3 x 31.5 cm)

Amazon Price: $584.99 | as of 08/22/2019(10:47am pst)
Availibility: Usually ships in 1-2 business days
List Price: $584.99

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  #2

Dwyer Capsuhelic Series 4000 Differential Pressure Gauge, Range 0-10"WC

Model: 4010/A   |    Mpn: 4010/A   |    PartNumber: 4010/A   |   Asin: B009P8OWDO

The Dwyer Capsuhelic series 4000 differential pressure gauge with an aluminum case has a circular 4" (100 mm) dial, and four female 1/4" NPT rate connections, and measures pressure with single scale in inch water column (WC), mm WC, cm WC, psid, or kPa with a display accuracy of + or - 3 or 4%. The die-cast aluminum case with impregnated hard coating is for measuring air and compatible gases and oil-based liquids. The circular dial is 4" in diameter and measures pressure with a single scale in inch water column (WC), mm WC, cm WC, psid, or kPa. The pressure being measured is held within a capsule in the gauge, which permits the use of the gauge on system pressures of up to 500 psig, even with differentials less than 0.1 in WC. The gauge accuracy is + or - 3% of full scale at 70 degrees F (21.1 degrees C) with + or - 4% of full scale on some models. The pressure limits are -20" Hg. to 500 psig. The temperature limit is 20 to 200 degrees F (-6.67 to 93.3 degrees C). Four female connections with 1/4" NPT (National Pipe Thread) rate provide for vertical mounting of the gauge. The connections are paired with one high and low pressure pair of taps on top for air and gas and one high and low pressure pair on bottom for liquids. This gauge is suitable as a readout device when measuring flowing fluids, pressure drop across filters, liquid levels in storage tanks, and other applications involving pressure, vacuum, or differential pressure. The gauge comes with two 1/4" NPT plugs for duplicate pressure taps, four flush mounting adapters with screws, and four surface mounting screws.

Pressure gauges are instruments used to measure the pressure of a gas or liquid inside a vessel and, often, to help ensure the optimal amount of pressure for a given application. Pressure gauges can range from everyday instruments, such as those used to measure the air pressure in a car or bicycle tire, to highly accurate gauges used in mechanical and industrial processing. Most often, pressure gauges measure pressure relative to another reference. For instance, gauge pressure measures pressure relative to ambient air. An example of a pressure gauge measuring relative to ambient air is a tire pressure gauge or a blood pressure gauge. Differential pressure is the difference in pressure between two points, such as when measuring liquid flow along various points in a pipeline. An absolute pressure gauge measures pressure relative to a perfect vacuum, such as an atmospheric or barometric pressure gauge. All types of pressure gauges include either a male or a female mount to connect to the vessel where pressure is being measured, and display results on a dial with varying increments of measure across a given range.

Dwyer Instruments manufactures measurement and control instruments, including pressure gauges, flow meters, level instrumentation, temperature instrumentation, and air quality monitors. The company, founded in 1931, is headquartered in Michigan City, IN.

What's in the Box? Dwyer Capsuhelic series 4000 differential pressure gauge 1/4" NPT plugs (2) Flush mounting adapters with screws (4) Surface mounting screws (4)

Features

  • Aluminum case for use with air and compatible gases and oil-based liquids
  • Circular dial is 4 (100 mm) in diameter
  • Measures pressure with single scale in inch water column (WC), mm WC, cm WC, psid, or kPa
  • Display accuracy is + or - 0.5% over the entire range of the gauge (ASME B40.100 Grade 2A)
  • Four female connections with 1/4 NPT rate paired at top and bottom
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Brand: Dwyer   |   Manufacturer: Dwyer Instruments

Amazon Price: $398.71 | as of 08/22/2019(10:47am pst)
Availibility: Usually ships in 1-2 business days
List Price: $398.71

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  #3

Dwyer Minihelic II Series 2-5000 Differential Pressure Gauge, Range 0-3.0"WC

Model: 2-5003   |    Mpn: 2-5003   |    PartNumber: 2-5003   |   Asin: B008HOWNFG

Combining clean design, small size and low cost with enough accuracy for all but the most demanding applications our Minihelic II gage offers the latest in design features for a dial type differential pressure gage. It is our most compact gage but is easy to read and can safely operate at total pressures up to 30 psig. The Minihelic II gage is designed for panel mounting in a single 2-5/8" diameter hole. Standard pressure connections are barbed fittings for 3/16" ID tubing; optional 1/8" male NPT connections are also available. Over-pressure protection is built into the Minihelic II gage by means of a blow-out membrane molded in conjunction with the diaphragm. Accidental over-ranging up to the rated total pressure will not damage the gage. With removable lens and rear housing, the gage may be easily serviced at minimum cost. With the housing molded from mineral and glass filled nylon and the lens molded from acrylic, the gage will withstand rough use and exposure as well as high total pressure. The 5% accuracy and low cost of the Minihelic II gage make it well-suited for a wide variety of OEM and user applications. OEM applications include cabinet air purging, medical respiratory therapy equipment, air samplers, laminar flow hoods, and electronic air cooling systems. As an air filter gage, the Minihelic II gage finds many end use applications on large stationary engines, compressors, ventilators, and air handling units. The Minihelic II gage is suitable for many of the same applications as the Magnehelic gage where the greater accuracy, sensitivity, and higher and lower differential pressure ranges of the Magnehelic gage are not required.

Features

  • Jewel bearings provide virtually friction-free helix motion
  • Housing is molded from strong mineral and glass filled nylon.
  • Pointer stops of molded rubber prevent pointer over-travel without damage
  • Full view lens is removable and molded of tough acrylic
  • Combining High Accuracy, Compactness, Dependability, and Low Cost
  • See more on Amazon...

Brand: Dwyer   |   Manufacturer: Dwyer Instruments

Package Dimensions: 2.4 x 2.9 x 3.5 inches (6.1 x 7.4 x 8.9 cm)

Amazon Price: $51.90 | as of 08/22/2019(10:47am pst)
Availibility: Usually ships in 1-2 business days
List Price: $44.00

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  #4

Door Pressure Gauge Push-Pull, 0-35 Lbs with Plastic Protective Tube - 3 Pack

 PartNumber: DPG35PPT-3   |   Asin: B00V561N40

Push-Pull capability. Range is from 0-35 Pounds Door Pressure Gauge Push-Pull instrument design specifically to measure force. This instrument is capable of measuring the entire range of forces found in servicing interior and exterior doors. OPERATING INSTRUCTIONS Set the top (small) o-ring located on the plunger rod on zero, down against the instrument's flange; or set the o-ring on the desired force. Holding the instrument firmly, press slowly against the door at a point approximately handle-high, and 30 inches away from the door's hinges. Read the amount of force required to open the door on the plunger scale closest to the bottom of the small o-ring. MEET ADA REQUIREMENTS The Americans with Disabilities Act requires that both interior and exterior doors of a building be handicapped accessible. Door Opening Force (4.1311 ADA AG). Exterior hinged doors:(Reserved) Interior hinged doors:5 lbs (22.2N) Sliding or folding doors:5 lbs (22.2N) Automatic/Power Assisted Doors:(4.13.12) Such doors shall not open to back check faster than 3 seconds and shall require no more than 15 lbs (66.6N) to stop door movement. If a power assisted door is used, its door-opening force shall comply with 4.13.11 and its closing shall conform to the requirements in ANSI A156.19-1984. Plastic Protective Tube for Door Pressure Gauge. Size:8" long 7/8" diameter Includes: Three Door Pressure Gauge Push-Pull, 0-35 Lbs Three Plastic Protective Tube

Features

  • Range is from 0-35 Pounds
  • Door Pressure Gauge Push-Pull instrument design specifically to measure force.
  • capable of measuring the entire range of forces found in servicing interior and exterior doors
  • Meets ADA requirements
  • Includes: Three Door Pressure Gauge Push-Pull, 0-35 Lbs and Three Plastic Protective Tube
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Brand: TechnologyLK   |   Manufacturer: TechnologyLK

Amazon Price: $174.95 | as of 08/22/2019(10:47am pst)
Availibility: Usually ships in 4-5 business days
List Price: $174.95

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  #5

Door Pressure Gauge Push-Pull, 0-35 Lbs with Plastic Protective Tube

 PartNumber: DPG35PPT   |   Asin: B00V55YLI6

Push-Pull capability. Range is from 0-35 Pounds Door Pressure Gauge Push-Pull instrument design specifically to measure force. This instrument is capable of measuring the entire range of forces found in servicing interior and exterior doors. OPERATING INSTRUCTIONS Set the top (small) o-ring located on the plunger rod on zero, down against the instrument's flange; or set the o-ring on the desired force. Holding the instrument firmly, press slowly against the door at a point approximately handle-high, and 30 inches away from the door's hinges. Read the amount of force required to open the door on the plunger scale closest to the bottom of the small o-ring. MEET ADA REQUIREMENTS The Americans with Disabilities Act requires that both interior and exterior doors of a building be handicapped accessible. Door Opening Force (4.1311 ADA AG). Exterior hinged doors:(Reserved) Interior hinged doors:5 lbs (22.2N) Sliding or folding doors:5 lbs (22.2N) Automatic/Power Assisted Doors:(4.13.12) Such doors shall not open to back check faster than 3 seconds and shall require no more than 15 lbs (66.6N) to stop door movement. If a power assisted door is used, its door-opening force shall comply with 4.13.11 and its closing shall conform to the requirements in ANSI A156.19-1984. Plastic Protective Tube for Door Pressure Gauge. Size:8" long 7/8" diameter Includes: One Door Pressure Gauge Push-Pull, 0-35 Lbs One Plastic Protective Tube

Features

  • Range is from 0-35 Pounds
  • Door Pressure Gauge Push-Pull instrument design specifically to measure force.
  • capable of measuring the entire range of forces found in servicing interior and exterior doors
  • Meets ADA requirements
  • Includes: One Door Pressure Gauge Push-Pull, 0-35 Lbs and One Plastic Protective Tube
  • See more on Amazon...

Brand: TechnologyLK   |   Manufacturer: TechnologyLK

Amazon Price: $61.95 | as of 08/22/2019(10:47am pst)
Availibility: Usually ships in 4-5 business days
List Price: $61.95

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  #6

Rubber Hardness Tester,Shore Type A/O/D Rubber Tire Durometer Hardness Tester Meter 0-100 HA (A Type)

 PartNumber: Hilitandoc2v4dugk5-01   |   Asin: B07DS5C6KS

Specifications:

Type(Optional): A, O, D
Dial value: 0-100 degrees
Pressure needle trip: 0-2.5 mm
Pressure needle end pressure:

A/O type: 0.55 N - 8.06 N,

D-type: 0-44.5 N
Accuracy: 0.1 mm
Test force: 0.5 N
Size: 78 * 52 * 22 mm/3.07*2.05*0.87inch
Weight: 200 g




Instructions:

The sample on strong plane, take the hardness tester, pressure needle distance sample at least 12 mm edge smooth put pressure on foot pressure in the sample, makes the needle vertical pressure into the sample, until the feet and sample completely contact pressure when within 1 s reading. Measuring at least 6 mm apart in different positions of the measurement hardness value 5 times, take the average (micro porous materials are measuring at least 15 mm). In order to stabilize determination conditions, to enhance determination accuracy, hardness tester device should be in the same determination on supporting producer determination.




Package Included:

1 x Rubber Tire Durometer











Features

  • ADVANTAGE:Easy to use, accurate measurement, easy to carry, durable and stable, practical and strong
  • INSTRUCTIONS:This rubber hardness tester is a measure of sulfur rubber and plastic products of hardness of the instrument
  • WATERPROOF NOT RUST:Made of alloy material,waterproof not rust,fine workmanship,durable
  • MORE CONVENIENT TO USE:The connecting device is more convenient to use with the frame
  • TYPE D IS SUITABLE FOR:Type D is suitable for general hard rubber, resin, acrylic, glass, thermoplastic rubber, printing plate, fiber etc
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Brand: Hilitand   |   Manufacturer: Hilitand

Package Dimensions: 1.5 x 3.23 x 5.28 inches (3.8 x 8.2 x 13.4 cm)

Amazon Price: $22.99 | as of 08/22/2019(10:47am pst)
Availibility: Usually ships in 1-2 business days
List Price: $22.99

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  #7

ADA Door Pressure Gauge

 Ean: 0618028557989   |    PartNumber: PG   |   Asin: B0753L6C5F

2010 Americans with Disabilities Act Standards (ADAS) section 404.2.9 Door and Gate Opening Force: Fire doors shall have a minimum opening force allowable by the appropriate Administrative Authority. The force for pushing or pulling open a door or gate other than fire doors shall be as follows: 1. Interior hinged doors and gates: 5 pounds maximum. 2. Sliding or folding doors: 5 pounds maximum. These forces do not apply to the force required to retract latch bolts or disengage other devices that hold the door or gate in a closed position. Advisory 404.2.9 Door and Gate Opening Force. The maximum force pertains to the continuous application of force necessary to fully open a door, not the initial force needed to overcome the inertia of the door. It does not apply to the force required to retract bolts or to disengage other devices used to keep the door in a closed position. OPERATING INSTRUCTIONS : 1. Set the top (small) o-ring located on the plunger rod on zero, down against the instrument's flange; or set the o-ring on the desired force. 2. Holding the instrument firmly, press slowly against the door at a point approximately handle-high, and 30 inches away from the door's hinges. 3. Read the amount of force required to open the door on the plunger scale closest to the bottom of the small o-ring. A must have for determining ADA compliance! Protective Tube (plastic) for Universal Door Pressure Gauge. Size: 8" long 7/8" diameter Includes: One Universal Door Pressure Gauge, 0-35 Lbs One Plastic Protective Tube

Features

  • Easy To use Pocket Sized Tool With Case (Plastic)
  • Measures Opening Force to Open Doors
  • 0-35 LB Range
  • Easy To Read
  • Check for ADAS, ABAAS, ANSI A117.1, IBC, CBC, FAC, MAC, TAS, NYCBC, NJAC, OSSC, WSBC, OBC, VACC, NCSBC, NHABC, SBC, PBCC, IFC, NFPA compliance.
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Brand: CalCasp.Inc   |   Manufacturer: HMC

Package Dimensions: 2.3 x 8.9 x 11.1 inches (5.8 x 22.6 x 28.2 cm)

Amazon Price: $45.00 | as of 08/22/2019(10:47am pst)
Availibility: Usually ships in 1-2 business days
List Price: $45.00

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  #8

Dwyer Minihelic II Series 2-5000 Differential Pressure Gauge, Range 0-100"WC

Model: 2-5100   |    Mpn: 2-5100   |    PartNumber: 2-5100   |   Asin: B009PC671K

Combining clean design, small size and low cost with enough accuracy for all but the most demanding applications our Minihelic II gage offers the latest in design features for a dial type differential pressure gage. It is our most compact gage but is easy to read and can safely operate at total pressures up to 30 psig. The Minihelic II gage is designed for panel mounting in a single 2-5/8" diameter hole. Standard pressure connections are barbed fittings for 3/16" ID tubing; optional 1/8" male NPT connections are also available. Over-pressure protection is built into the Minihelic II gage by means of a blow-out membrane molded in conjunction with the diaphragm. Accidental over-ranging up to the rated total pressure will not damage the gage. With removable lens and rear housing, the gage may be easily serviced at minimum cost. With the housing molded from mineral and glass filled nylon and the lens molded from acrylic, the gage will withstand rough use and exposure as well as high total pressure. The 5% accuracy and low cost of the Minihelic II gage make it well-suited for a wide variety of OEM and user applications. OEM applications include cabinet air purging, medical respiratory therapy equipment, air samplers, laminar flow hoods, and electronic air cooling systems. As an air filter gage, the Minihelic II gage finds many end use applications on large stationary engines, compressors, ventilators, and air handling units. The Minihelic II gage is suitable for many of the same applications as the Magnehelic gage where the greater accuracy, sensitivity, and higher and lower differential pressure ranges of the Magnehelic gage are not required.

Features

  • Jewel bearings provide virtually friction-free helix motion
  • Housing is molded from strong mineral and glass filled nylon.
  • Pointer stops of molded rubber prevent pointer over-travel without damage
  • Full view lens is removable and molded of tough acrylic
  • Combining High Accuracy, Compactness, Dependability, and Low Cost
  • See more on Amazon...

Brand: Dwyer   |   Manufacturer: Dwyer Instruments

Package Dimensions: 2.8 x 3.6 x 3.7 inches (7.1 x 9.1 x 9.4 cm)

Amazon Price: $52.90 | as of 08/22/2019(10:47am pst)
Availibility: Usually ships in 1-2 business days
List Price: $44.00

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  #9

Dwyer DM-1122 DigiMag Digital Differential Pressure and Flow Gage, Range 0.25-0-0.25" W.C.

 Ean: 0094713837367   |    PartNumber: DM-1122   |   Asin: B007ICHLR8

' Digital Low Pressure Gauge, Dial Size (In.) 5, Range 0.25 to 0 to 0.25 In WC, Connection Size 1/8" O.D. Smooth Barb, Connection Location Back, Accuracy (%) +/-2, Socket Material Glass Filled Plastic, Case Material Glass Filled Plastic, Case Color Light Grey, Display 4 Digit LCD, Display Units in H2O, kPa, Pa, mBar, mm H2O, mm Hg, % Full Scale, Resolution Dependent on Display Units Selected, Powered By 9V Battery or 9 to 24VDC, Agency Compliance CE, Features Differential Measurement, Series DM '

Features

  • Price For: Each Operating Temp. Range (F): 0 Degrees to 140 Degrees Agency Compliance: CE Series: DM Case Color: Light Gray Includes: Battery and Instructions Case Material: Glass Reinforced Thermo Plastic Connection Location: Back Display: 4 Digit LCD Connection Size: 1/8" O.D. Smooth Barb Resolution: Dependent on Display Units Selected Socket Material: Glass Filled Plastic
  • Item: Digital Pressure Gauge Dial Size (In.): 5 Powered By: 9V Battery or 9 to 24VDC Manufacturers Warranty Length: 1 yr. Display Units: H2O, kPa, Pa, mBar, mm H2O, mm Hg, % Full Scale Features: Differential Measurement Range: 0.25 to 0 to 0.25 In WC Accuracy (%): +/-2.00 Country of Origin (subject to change): United States
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Brand: Dwyer   |   Manufacturer: DWYER INSTRUMENTS

Item Dimensions: 7.6 x 3.6 x 6.8 inches (19.3 x 9.1 x 17.3 cm)   |   

Amazon Price: $155.90 | as of 08/22/2019(10:47am pst)
Availibility: Usually ships in 1-2 business days
List Price: $155.90

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  #10

Differential Pressure Gauge, 0-2 Inches WC

 Ean: 0758576892030   |    PartNumber: DPGJH20002X   |   Asin: B01N9RIGJZ

DIFFERENTIAL PRESSURE GAUGE 0-2 INCH W.C.

Features

  • Differential pressure gauges indicates low air or non-corrosive gas pressures--either positive, negative (vacuum) or differential.
  • Material: Aluminum
  • Dimensions: 4-3/4 dia. X 2-3/16 deep
  • Accuracy: 2% of full scale at 70 F
  • Pressure Rating: 15 PSI
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Brand: JH Gauge   |   Manufacturer: JH Gauge

Amazon Price: $62.99 | as of 08/22/2019(10:47am pst)
Availibility: Usually ships in 24 hours
List Price: $62.99

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  #11

Watts TK9A Backflow Test Kit Base Model

 Ean: 7426978482618   |    PartNumber: tk9a_base   |   Asin: B07NYGLZXB

Watts TK9A backflow test kit The TK9A is a 3-valve test kit used by certified backflow testers for testing all makes, models and sizes backflow preventer assemblies, including irrigation, domestic, isolation, containment and fire. The TK9A backflow test kit ships fully assembled and with everything needed to start testing right away: hoses, adapters and carrying case. The Acugauge TK9A backflow test kit also comes with a calibration certificate valid for one year. The TK9A backflow test Kit is used for testing the following domestic, irrigation and fire-line backflow preventer assemblies: Reduced Pressure Zone (RPZ) Double Check Valve (DC) Pressure Vacuum Breaker (PVB) Spill-resistant Pressure Vacuum Breaker (SPVB) Reduced Pressure Detector Assembly (RPDA) Double Check Detector Assembly (DCDA) 3-valve configuration (high, low and bypass) 4.5" differential pressure gauge; scale: 0 -15 PSID Extra FREE line pressure gauge for recording system pressure, now required by most water purveyors; scale: 0-160 PSI Full set of test cock adapters: (3) 1/8", (3) 1/4", (3) 1/2" (total of 9) Full set of backflow test hoses (total of 3) 36", color-coded (red, blue and yellow) with ergonomic knurled swivel couplings for easy on and off without tools Aluminum foam-lined instrument carrying case Standard 3-valve operating procedure Maximum Working Temperature: 210 F Maximum Working Pressure: 175 PSI Ships fully assembled - start testing right out of the case! TRY IT FREE FOR 30 DAYS. This might change your mind...All Acugauge products are protected by a 30-DAY MONEY BACK GUARANTEE. If you don't love it, return it - no sweat. We'll even pay your return shipping!

Features

  • Same as TK9A PRO but without optional line pressure gauge
  • Calibration Certificate valid for 1 Year
  • FREE hoses, adapters, carrying case and adapters
  • 30-Day Money Back Guarantee
  • Ships Fully Assembled... start testing right out of the case
  • See more on Amazon...

Brand: Acugauge®   |   Manufacturer: Acugauge®

Item Dimensions: 5 x 12 x 8 inches (12.7 x 30.5 x 20.3 cm)   |   Package Dimensions: 5.2 x 9.06 x 12.24 inches (13.2 x 23.0 x 31.1 cm)

Amazon Price: $544.99 | as of 08/22/2019(10:47am pst)
Availibility: Usually ships in 1-2 business days
List Price: $544.99

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  #12

filterSHIELD 10 PSI Differential Pressure Gauge for Filter Status

 PartNumber: FS-10   |   Asin: B07L37NM7Q

This filterSHIELD differential pressure gauge series is perfect for monitoring filter systems. It features a green, yellow, red status indicator arc and a max indicating pointer. The max pointer stays at the daily maximum differential pressure reading. Whether you are monitoring a water or fuel filter, managing pump life, measuring flow rates, or any other application of differential pressure, this a great gauge.

Features

  • Measures 10 psi Differential Pressure
  • Has Re-settable Max Indicating Pointer for Daily Max Reading
  • Three Color Arc Provides Great Filter Status Visual Feedback
  • Anodized Aluminum with Buna Seals, Rated to 3,000 PSI
  • 1/4 NPT connections Inline
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Brand: Differential Pressure Plus Inc.   |   Manufacturer: Differential Pressure Plus Inc.

Package Dimensions: 2.56 x 4.65 x 6.06 inches (6.5 x 11.8 x 15.4 cm)

Amazon Price: $144.99 | as of 08/22/2019(10:47am pst)
Availibility: Usually ships in 24 hours
List Price: $144.99

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  #13

Dwyer Minihelic II Series 2-5000 Differential Pressure Gauge, Range 0-1 kPa

Model: 2-5000-1KPA   |    Mpn: 2-5000-1KPA   |    PartNumber: 2-5000-1KPA   |   Asin: B009PC5ZSG

Combining clean design, small size and low cost with enough accuracy for all but the most demanding applications our Minihelic II gage offers the latest in design features for a dial type differential pressure gage. It is our most compact gage but is easy to read and can safely operate at total pressures up to 30 psig. The Minihelic II gage is designed for panel mounting in a single 2-5/8" diameter hole. Standard pressure connections are barbed fittings for 3/16" ID tubing; optional 1/8" male NPT connections are also available. Over-pressure protection is built into the Minihelic II gage by means of a blow-out membrane molded in conjunction with the diaphragm. Accidental over-ranging up to the rated total pressure will not damage the gage. With removable lens and rear housing, the gage may be easily serviced at minimum cost. With the housing molded from mineral and glass filled nylon and the lens molded from acrylic, the gage will withstand rough use and exposure as well as high total pressure. The 5% accuracy and low cost of the Minihelic II gage make it well-suited for a wide variety of OEM and user applications. OEM applications include cabinet air purging, medical respiratory therapy equipment, air samplers, laminar flow hoods, and electronic air cooling systems. As an air filter gage, the Minihelic II gage finds many end use applications on large stationary engines, compressors, ventilators, and air handling units. The Minihelic II gage is suitable for many of the same applications as the Magnehelic gage where the greater accuracy, sensitivity, and higher and lower differential pressure ranges of the Magnehelic gage are not required.

Features

  • Jewel bearings provide virtually friction-free helix motion
  • Housing is molded from strong mineral and glass filled nylon.
  • Pointer stops of molded rubber prevent pointer over-travel without damage
  • Full view lens is removable and molded of tough acrylic
  • Combining High Accuracy, Compactness, Dependability, and Low Cost
  • See more on Amazon...

Brand: Dwyer   |   Manufacturer: Dwyer Instruments

Package Dimensions: 2.9 x 3.6 x 3.7 inches (7.4 x 9.1 x 9.4 cm)

Amazon Price: $52.90 | as of 08/22/2019(10:47am pst)
Availibility: Usually ships in 1-2 business days
List Price: $44.00

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  #14

Dwyer Capsuhelic Series 4000 Differential Pressure Gauge, Range 0-15"WC

Model: 4015   |    Mpn: 4015   |    PartNumber: 4015   |   Asin: B008HQ44J2

The Dwyer Capsuhelic series 4000 differential pressure gauge with an aluminum case has a circular 4" (100 mm) dial, and four female 1/4" NPT rate connections, and measures pressure with single scale in inch water column (WC), mm WC, cm WC, psid, or kPa with a display accuracy of + or - 3 or 4%. The die-cast aluminum case with impregnated hard coating is for measuring air and compatible gases and oil-based liquids. The circular dial is 4" in diameter and measures pressure with a single scale in inch water column (WC), mm WC, cm WC, psid, or kPa. The pressure being measured is held within a capsule in the gauge, which permits the use of the gauge on system pressures of up to 500 psig, even with differentials less than 0.1 in WC. The gauge accuracy is + or - 3% of full scale at 70 degrees F (21.1 degrees C) with + or - 4% of full scale on some models. The pressure limits are -20" Hg. to 500 psig. The temperature limit is 20 to 200 degrees F (-6.67 to 93.3 degrees C). Four female connections with 1/4" NPT (National Pipe Thread) rate provide for vertical mounting of the gauge. The connections are paired with one high and low pressure pair of taps on top for air and gas and one high and low pressure pair on bottom for liquids. This gauge is suitable as a readout device when measuring flowing fluids, pressure drop across filters, liquid levels in storage tanks, and other applications involving pressure, vacuum, or differential pressure. The gauge comes with two 1/4" NPT plugs for duplicate pressure taps, four flush mounting adapters with screws, and four surface mounting screws.

Pressure gauges are instruments used to measure the pressure of a gas or liquid inside a vessel and, often, to help ensure the optimal amount of pressure for a given application. Pressure gauges can range from everyday instruments, such as those used to measure the air pressure in a car or bicycle tire, to highly accurate gauges used in mechanical and industrial processing. Most often, pressure gauges measure pressure relative to another reference. For instance, gauge pressure measures pressure relative to ambient air. An example of a pressure gauge measuring relative to ambient air is a tire pressure gauge or a blood pressure gauge. Differential pressure is the difference in pressure between two points, such as when measuring liquid flow along various points in a pipeline. An absolute pressure gauge measures pressure relative to a perfect vacuum, such as an atmospheric or barometric pressure gauge. All types of pressure gauges include either a male or a female mount to connect to the vessel where pressure is being measured, and display results on a dial with varying increments of measure across a given range.

Dwyer Instruments manufactures measurement and control instruments, including pressure gauges, flow meters, level instrumentation, temperature instrumentation, and air quality monitors. The company, founded in 1931, is headquartered in Michigan City, IN.

What's in the Box? Dwyer Capsuhelic series 4000 differential pressure gauge 1/4" NPT plugs (2) Flush mounting adapters with screws (4) Surface mounting screws (4)

Features

  • Aluminum case for use with air and compatible gases and oil-based liquids
  • Circular dial is 4 (100 mm) in diameter
  • Measures pressure with single scale in inch water column (WC), mm WC, cm WC, psid, or kPa
  • Display accuracy is + or - 0.5% over the entire range of the gauge (ASME B40.100 Grade 2A)
  • Four female connections with 1/4 NPT rate paired at top and bottom
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Brand: Dwyer   |   Manufacturer: Dwyer Instruments

Package Dimensions: 3.3 x 5.9 x 6 inches (8.4 x 15.0 x 15.2 cm)

Amazon Price: $413.71 | as of 08/22/2019(10:47am pst)
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List Price: $389.00

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  #15

Door Pressure Gauge, 0-35 Lbs with Plastic Protective Tube - 3 Pack

 PartNumber: DPG35T-3   |   Asin: B00V55SNLM

Range is from 0-35 Pounds Door Pressure Gauge instrument design specifically to measure force. OPERATING INSTRUCTIONS Set the top (small) o-ring located on the plunger rod on zero, down against the instrument's flange; or set the o-ring on the desired force. Holding the instrument firmly, press slowly against the door at a point approximately handle-high, and 30 inches away from the door's hinges. Read the amount of force required to open the door on the plunger scale closest to the bottom of the small o-ring. MEET ADA REQUIREMENTS The Americans with Disabilities Act requires that both interior and exterior doors of a building be handicapped accessible. Door Opening Force (4.1311 ADAAG). Exterior hinged doors:(Reserved) Interior hinged doors:5 lbs (22.2N) Sliding or folding doors:5 lbs (22.2N) Automatic/Power Assisted Doors:(4.13.12) Such doors shall not open to back check faster than 3 seconds and shall require no more than 15 lbs (66.6N) to stop door movement. If a power assisted door is used, its door-opening force shall comply with 4.13.11 and its closing shall conform to the requirements in ANSI A156.19-1984. Plastic Protective Tube for Door Pressure Gauge. Size:8" long 7/8" diameter Includes: Three Door Pressure Gauge, 0-35 Lbs Three Plastic Protective Tube

Features

  • Range is from 0-35 Pounds
  • Door Pressure Gauge instrument design specifically to measure force.
  • Meets ADA requirements
  • Three Door Pressure Gauge, 0-35 Lbs
  • Three Plastic Protective Tube
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Brand: TechnologyLK   |   Manufacturer: TechnologyLK

Amazon Price: $84.95 | as of 08/22/2019(10:47am pst)
Availibility: Usually ships in 4-5 business days
List Price: $84.95

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  #16

Dwyer Minihelic II Series 2-5000 Differential Pressure Gauge, Range 0-20"WC

Model: 2-5020   |    Mpn: 2-5020   |    PartNumber: 2-5020   |   Asin: B009PC6CAQ

Combining clean design, small size and low cost with enough accuracy for all but the most demanding applications our Minihelic II gage offers the latest in design features for a dial type differential pressure gage. It is our most compact gage but is easy to read and can safely operate at total pressures up to 30 psig. The Minihelic II gage is designed for panel mounting in a single 2-5/8" diameter hole. Standard pressure connections are barbed fittings for 3/16" ID tubing; optional 1/8" male NPT connections are also available. Over-pressure protection is built into the Minihelic II gage by means of a blow-out membrane molded in conjunction with the diaphragm. Accidental over-ranging up to the rated total pressure will not damage the gage. With removable lens and rear housing, the gage may be easily serviced at minimum cost. With the housing molded from mineral and glass filled nylon and the lens molded from acrylic, the gage will withstand rough use and exposure as well as high total pressure. The 5% accuracy and low cost of the Minihelic II gage make it well-suited for a wide variety of OEM and user applications. OEM applications include cabinet air purging, medical respiratory therapy equipment, air samplers, laminar flow hoods, and electronic air cooling systems. As an air filter gage, the Minihelic II gage finds many end use applications on large stationary engines, compressors, ventilators, and air handling units. The Minihelic II gage is suitable for many of the same applications as the Magnehelic gage where the greater accuracy, sensitivity, and higher and lower differential pressure ranges of the Magnehelic gage are not required.

Features

  • Jewel bearings provide virtually friction-free helix motion
  • Housing is molded from strong mineral and glass filled nylon.
  • Pointer stops of molded rubber prevent pointer over-travel without damage
  • Full view lens is removable and molded of tough acrylic
  • Combining High Accuracy, Compactness, Dependability, and Low Cost
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Brand: Dwyer   |   Manufacturer: Dwyer Instruments

Package Dimensions: 2.9 x 3.7 x 3.8 inches (7.4 x 9.4 x 9.7 cm)

Amazon Price: $50.90 | as of 08/22/2019(10:47am pst)
Availibility: Usually ships in 1-2 business days
List Price: $44.00

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  #17

Dwyer DigiMag Series DM-1000 Differential Digital Pressure Gauge, Range 0-10"WC

Model: DM-1108   |    Mpn: DM-1108   |    Ean: 0094713837312   |    PartNumber: DM-1108   |   Asin: B009P8VFFW

The DigiMag Series DM-1000 Digital Differential Pressure and Flow Gages monitor the pressure of air and compatible gases just as its famous analog predecessor the Magnehelic Differential Pressure Gage. All models are factory calibrated to specific ranges. The 4-digit LCD can display readings in common English and metric units so conversions are not necessary. The simplified four button operation reduces set up time and simplifies calibration with its digital push button zero and span.

Features

  • Air and non-combustible, compatible gases.
  • Consult factory.
  • Glass filled plastic.
  • Removable terminal block for 16 to 26 AWG.
  • Cable gland for 0.114 to 0.250 (2.9 to 6.4 mm) diameter cable.
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Brand: Dwyer   |   Manufacturer: Dwyer Instruments

Package Dimensions: 3.7 x 6.8 x 7.5 inches (9.4 x 17.3 x 19.1 cm)

Amazon Price: $124.90 | as of 08/22/2019(10:47am pst)
Availibility: Usually ships in 1-2 business days
List Price: $115.00

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  #18

DPP975 Filter Indicator with 1/8" NPT Connections (10psid Version)

 PartNumber: DPP975-RMB-10   |   Asin: B00JLOWCU2

This unique pressure gauge compares the difference in pressure between the inlet side of a filter and the outlet. By connecting to the 1/8" FNPT ports on either side of the gauge, you can closely watch the status of your filter system and know when to change the cartridge. One of the best features is the fact that the gauge has a display face on front and back. That means you can connect to your system, regardless of the flow directions.

Features

  • 10 PSI Range (0-5 Green, 5-7.5 Yellow, 7.5-10 Red)
  • 300 PSI System Pressure Rating
  • Glass-filled Nylon with Viton rubber seals
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Brand: Differential Pressure Plus Inc.   |   Manufacturer: Differential Pressure Plus Inc.

Amazon Price: $39.99 | as of 08/22/2019(10:47am pst)
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  #19

YWILLINK High Precision Digital Differential Pressure Gauge Tester Meter LCD Display

 Ean: 6131234625272   |   Asin: B07THVL543

Features: 2.8-inch large LCD backlit display for clear reading. 12 measurement units selected:kPa,psi,kg /cm ; ozin ,bar,mbar,inHg,mmHg,inH2O,ftH2O,cmH2O. Low battery indicator and pressure unit indicator. Zero adjustment, offset and DIF functions. Automatic / manual power off function. Data retention and auto-shutdown. Suitable for measurement and on-site inspection of ventilation and air conditioning systems, corrective maintenance of clean rooms or any gas pressure system. Notice: Actual color may be slightly different from the image due to different monitor and light effect Please allow 1-3cm deviation due to manual measurement Specification: Display: 2.8 inches Unit:kPa,psi,kg /cm ; ozin ,bar,mbar,inHg,mmHg,inH2O,ftH2O,cmH2O,Pa Optional pressure range: 2.999 psi Accuracy: FSO 0.3% (at 25 degree centigrade) Repeatability: 0.2% (maximum 0.5% FSO) Response time: 0.5 seconds Overrange indicator: Err 0 Under the range indicator: Error 1 Temperature: -40 to 80 degree centigrade (-40 to 176 degree fahrenheit ?br />Operating conditions: 0 to 50 degree centigrade (32 to 122 degree fahrenheit) Storage conditions: -10 to 60 degree centigrade(14 to 140 degree fahrenheit ?br />Battery: 9V battery (not included) Size: 164 x 70 x 32 mm Included: 1x Pressure gauge 2x Plastic tube 1x Metal connector 1x User manual

Features

  • 2.8-inch large LCD backlit display for clear reading.
  • 12 measurement units selected:kPa,psi,kg /cm ; ozin ,bar,mbar,inHg,mmHg,inH2O,ftH2O,cmH2O.
  • Low battery indicator and pressure unit indicator.
  • Zero adjustment, offset and DIF functions.
  • Automatic / manual power off function.
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Brand: YWILLINK   |   Manufacturer: YWILLINK

Amazon Price: $33.46 | as of 08/22/2019(10:47am pst)
Availibility: Usually ships in 1-2 business days
List Price: $33.46

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  #20

Dwyer Mounting Bracket for The Series 2-5000 Minihelic II Differential Pressure Gauge

Model: A-497   |    Mpn: A-497   |    PartNumber: A-497   |   Asin: B009P9ZRH8

The Dwyer A-497 surface mounting bracket is used to surface mount the Dwyer Minihelic II differential pressure gauge (not included). Pre-drilled holes ease installation. The steel bracket has a black satin finish for durability.

Pressure gauges are instruments used to measure the pressure of a gas or liquid inside a vessel and, often, to help ensure the optimal amount of pressure for a given application. Pressure gauges can range from everyday instruments, such as those used to measure the air pressure in a car or bicycle tire, to highly accurate gauges used in mechanical and industrial processing. Most often, pressure gauges measure pressure relative to a reference measurement. Gauge pressure measures the pressure of something relative to ambient air. For example, a tire pressure gauge or a blood pressure gauge measures the air in a tire or blood flowing through veins relative to ambient air. Differential pressure is the difference in pressure between two points, such as when measuring liquid flow along various points in a pipeline. An absolute pressure gauge measures pressure relative to a perfect vacuum, for example, an atmospheric or barometric pressure gauge. All types of pressure gauges include either a male or a female mount to connect to the vessel where pressure is being measured, and they display results on a dial with varying increments of measure across a given range.

Dwyer Instruments manufactures measurement and control instruments, including pressure gauges, flow meters, level instrumentation, temperature instrumentation, and air quality monitors. The company, founded in 1931, is headquartered in Michigan City, IN.

Features

  • Dwyer A-497 mounting bracket for surface mounting Dwyer Series 2-5000 Minihelic II differential pressure gauges (not included)
  • Pre-drilled holes ease installation
  • Steel construction with satin black finish is durable
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Brand: Dwyer   |   Manufacturer: Dwyer Instruments

Package Dimensions: 2.2 x 3.2 x 5.5 inches (5.6 x 8.1 x 14.0 cm)

Amazon Price: $24.90 | as of 08/22/2019(10:47am pst)
Availibility: Usually ships in 1-2 business days
List Price: $15.25

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