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Best Choice KLEIN TOOLS 
Klein Tools A-ET180 Digital Differential Manometer Digital Manometer measures air and gas pressure for ports P1, P2 and differentialBest Value PRETYZOOM 
PRETYZOOM Stainless Steel U-tube Differential Pressure Gauge 0-5kpa High Accuracy U-shaped Manometer for Low Pressure Me U gauge pressure-- material and craftsmanship ensure its durability and practicality,low pressure u shaped gauge
Digital Manometer HT-1890 Handheld Differential Gauge Pressure Meter LCD Display It supports11 selectable units, adual LCD backlight display, and advanced features like max/min/avg, zeroing, and data hMengshen 
Mengshen Digital Manometer, Professional Digital Air Pressure Meter & Differential Pressure Gauge Kit - ±13.79kPa / ±2 p 1) Mini & Portable: 5.9 x 2.2 x 1.4 inches, support one hand operation.
Digital Manometer Differential Pressure Meter Gauge 0 to 2psi TOVINANNA 
TOVINANNA Differential Pressure Gauge U Tube Manometer Stainless Steel Water Column Gauge for Air Pressure Instrument an Versatile use: ideal for measuring pressure differences in gas pipelines and other systems, catering to diverse testingGAIN EXPRESS 
Professional Digital Pressure Gauge, Portable Handheld Air Vacuum/Gas Pressure Gauge, 11 Units with Backlight, ± 13.78kP 1. Advance with 4.7mm Tube connector, silicone tubing with 3mm inner diameter and 5mm outer diamterDifferential Pressure Gauge HVAC Gas Pressure Tester Manometer Gas Pressure Test 【High Quality & LCD Backlight Display】 The hand-held digital pressure gauge is made of high-quality ABS material, whichAlcheLHymist Differential Pressure Gauge Dial, ±2% Pressure Gauge with 1/8in NPT Aluminum Housing for Electronics, Microelectronics a Measurement: This differential pressure gauge dial delivers reliable readings with full-scale accuracy of ±2%, ±3%, or ±Digital Manometer Differential Air Pressure Meter Gauge 0 to 100psi PerGar 1/8In Female NPT Differential Pressure Gauge with 1/8 Bard Connector, Aluminum Construction, High Accuracy, for Air and Clear Viewing: The transparent cover of the gauge allows for a clear view of the pointer and scale, providing easy readaWapoRich Manometer,Professional Air Pressure Meter Dual-Port Manometer Gas Pressure Tester,12 Selectable Units Differential Press 【Intelligent Dual Input】The dual input probe of the manometer can easily measure the differential pressure, the dual porDigital Manometer HT-1890 Handheld Differential Gauge Pressure Meter LCD Display It supports11 selectable units, adual LCD backlight display, and advanced features like max/min/avg, zeroing, and data hYsXoWiui YsXoWiui High Precision Micro Pressure Gauge Differential Air Vacuum Easy Use Heavy Duty Gas Pressure Gauge Measuring Ra 【Precision Micro Differential Pressure Measurement】: This micro differential pressure gauge is designed to accurately meDigital Manometer HT-1890 Handheld Differential Gauge Pressure Meter LCD Display Max/Min recording are useful features, Data Hold and Auto Power Off functions. It is ideal for carrying out servicing anULTECHNOVO ULTECHNOVO U Shaped Pressure Gauge Manometer Stainless Steel u Tube Water Column Gauge Pressure for Vacuum Tube Tester I Pressure gauge-- this vacuum tube tester can be used for a variety of different .SNDWAY Digital Differential Manometer Handheld Air Gas Pressure Gauge Meter BU Simple operation and clear readings. Feature: 1. Pressure Connection: A 1/8in (3.18mm) quick connector. Accuracy: ±1%FS,Generic Clean Room Filter Measuring Meter Differential Pressure Gauge Meter Filtered Differential Pressure Gauges, 0-60Pa High Precision: This Filtered Differential Pressure Gauge Meter ensures accurate measurement for clean room filters, makDigital Differential Manometer Handheld Air Gas Pressure Gauge Meter ±103.42KPA Pressure Connection: A 1/8in (3.18mm) quick connector. Accuracy: ±1%FS, maximum error 1.04KPa. Maximum Pressure Limit: 212% Off Cryfokt Digital Manometer with LCD Backlight Display, High Accuracy Fast Measurement Gas Pressure Tester with Data Recording Fun 【DATA RECORDING FUNCTION】 The digital pressure gauge can record 32 data. Each time the storage key is pressed, the instrManometer Digital Air Pressure Meter Differential Gas Tester Tool LCD Gauge Test the differential pressure of areas and pipes, wind velocity of pipeline. LCD display with backlight for easy readinpredolo predolo Differential Pressure Gauge Installation Box Sturdy Manometer Micro Measuring Material:Crafted from PP and Stainless Steel, this installation box ensures long term use, lightweight but sturdyDigital Manometer Differential Pressure Gauge HVAC Air Gas Pressure Meter Tester 4.45CM×4.95CM display, support LCD backlight, convenient lighting operation, display data clearer and easier to read. 【ZDidiseaon Didiseaon Differential Pressure Gauge Compact Stainless Steel Vacuum Pressure Meter Silver U-Shaped Water Column Manomet Water manometer--easy to operate and suitable for both professionals and amateurs,gas pressure test gaugeDigital Manometer HT-1890 Handheld Differential Gauge Pressure Meter LCD Display Large LCD Back light dual display. Low battery display and automatic shutdown. Maximum Pressure. 0.2%(Max0.5%FSO). 0.3%HOUDERCO HOUDERCO Stainless Steel U-shaped Manometer 0-10kpa Differential Pressure Gauge U-tube Pressure Meter for Industrial and Pressure gauge for pool filter:it offers clear readings good air tightness accurate measurement,manometer pressure testeDigital Air Pressure Meter Differential Pressure Gauge HVAC Gas Tester Backlight ±0.25%FS repeatability. ✅Data Logging: Press"REC" button to record and review max / min / average air pressure data. LarHUBEST HUBEST Airbrush Compressor Pressure Regulator Water Trap Filter Water Moisture Gauge AFR-2000 1.AFR-2000 air filter regulator is that adjust The main channel of air pressure to a pressure value what the control devDifferential Pressure Gauge Meter Clean Room Filter Measuring Meter Filtered Item Type: Differential Pressure Gauge. Kitchen Tools. Interface: 1/8 female thread normal temperature and normal pressuLxwythozoan Differential Pressure Gauge Dial High Accuracy 1/8in NPT Aluminium for Electronics Pressure Dial: Able to measure positive pressure, negative pressure and differential pressure, this gauge is very reliabDwyer A-27 Magnehelic Differential Pressure Gauges , 2 of them 2 Dwyer magnehelic differential pressure gauges , never used. The manuals are not in the best condition but they are reaINSTRUKART Testo 510 Portable Manometer for HVAC Technicians, Ventilation Work, Ductwork | Differential Pressure Gauge for Airflow Features of Manometer: Differential pressure measurement from 0 to 100 hPa | Flow measurement possible with a Pitot tubeGTP-534-30 GAMMON DIFFERENTIAL PRESSURE GAUGES GTP-534 Generic Differential Pressure Gauge Meter Pressure Gauge Differential Pressure Gauge Filtered Differential Pressure Gauges, 30Pa High Precision: This Filtered Differential Pressure Gauge Meter ensures accurate measurement for clean room filters, makGeneric ABS Differential Pressure Gauge Meter Pressure Gauge Differential Pressure Gauge Filtered Differential Pressure Gauges, High Precision: This Filtered Differential Pressure Gauge Meter ensures accurate measurement for clean room filters, makLXLTQV Digital Micro Differential Pressure Gauge Pressure Switch Pressure Transmitter(0-1000pa) Compression GaugesZisemeil Differential Pressure Gauge Digital Sensor Meter Smart Handheld for Air Gas with LED Backlight Powerful Features: High precision digital display differential pressure gauge, can detect different gas medium differentFRCOLOR FRCOLOR Alloy U-tube Differential Pressure Gauge ±2000pa Water Column Gas Pressure Meter for Natural Gas Pipeline Testin Effortless setup: the manometer kit is simple to install and maintain, ideal for anyone needing a metal gas pressure gauKHAONB Differential Pressure Gauge GD40-2-01 Compression GaugesMOBUTOFU MOBUTOFU U-Shaped Manometer: Tube Differential Pressure Gauge Exact pressure measurement: The u-type pressure gauge captures precise readings of pressure differences in a natural gasJMNVYO Differential Pressure Gauge GD40-2-01 Compression GaugesGALPADA GALPADA Differential Pressure Gauge and Precise Readings Stainless Steel U-Shaped with Compact Design for Water Column M Gas pressure gauge:accurate measurements achieved with a water column pressure differential gauge,inline water pressureGeneric ABS Differential Pressure Gauge Meter Pressure Gauge Differential Pressure Gauge Filtered Differential Pressure Gauges, High Precision: This Filtered Differential Pressure Gauge Meter ensures accurate measurement for clean room filters, makYardwe Yardwe U Tube Differential Pressure Gauge 0-3000Pa Stainless Steel Vacuum Meter for Gas Pipeline Testing and Laboratory Vacuum tube tester--this pressure gauge is user-friendly and suitable for individuals with all levels of experience,diffCiieeo Ciieeo U-Tube Manometer Water Column Gas Pressure Tester 0-4000pa Differential Pressure Gauge for Natural Gas Pipeline a Sensitive detection: the water column pressure gauge responds quickly to pressure changes, allowing users to monitor fluCiieeo Ciieeo U-Tube Manometer Water Column Gas Pressure Tester 0-4000pa Differential Pressure Gauge for Natural Gas Pipeline a Sensitive detection: the water column pressure gauge responds quickly to pressure changes, allowing users to monitor fluBaxnore Baxnore Differential Pressure Gauge, HVAC Filter Detection with Pointer, Low Power Consumption Filter Detection Gauge, P Transparency: The transparent plastic surface offers a clear, distortion-no view; With its resistant to breakage, it ensKuiopJet KuiopJet Differential Pressure Gauge Stainless Steel U Tube Manometer Vacuum Tube Tester High Accuracy Pressure Meter U-shaped Pressure Gauge: Designed for and durability, this U-shaped manometer is ideal for measuring differential pressuKJHBV KJHBV Water Column Gauge U Tube Differential Pressure Gauge for Air Pressure Manometer accessories:can be used to measure positive and negative pressure gas pipelines,Vacuum Pressure GaugeCLISPEED CLISPEED Stainless Steel Differential Pressure Gauge U Tube Manometer for Air and Gas Pressure Testing with Water Column Manometer pressure gauge--the compact and lightweight design of this vacuum pressure gauge makes it easy to transport anpupoioi Smart Differential Pressure Gauge Intelligent Pressure Detection Meter with Pointer and Scale for Microelectronics Aeros [DURABLE TRANSPARENT CASE] The differential pressure gauge features a robust plastic shell with excellent toughness ensusenctrl SENCTRL 0-15 Psi Low Pressure Gauge, 2" Dial Size, 1/4 Npt Lower Mount, Anti-Fog, Waterproof, Stainless Steel Case, for PRV-Tex Series: The circular dial is enclosed in a 304 stainless steel case for corrosion resistance. IP67 waterproof reEigell Eigell Air Pressure Differential Gauge Micro Differential Pressure Gauge Micro Pressure Meter, 30pa 【Construction】: Micro Differential Pressure Gauge Crafted from plastic and metal materials, this gauge ensures long lastAdfaga Adfaga Differential Pressure Gauge HVAC High Precision Aluminum Alloy Transparent Case with 1/8 NPT Thread for Clean Roo [CRYSTAL CLEAR VISIBILITY] Our differential pressure gauge features an ultra-transparent polycarbonate case that provideDAYUAN DA Yuan 0-140 PSI Fuel Injection Pressure Gauge Tester Tool Kit Comes with an instruction, a complete kit including adapters, hoses & fittings, suitable for Chrysler, Ford, GM Jeep, Nisenctrl SENCTRL 0-15 Psi Low Pressure Gauge, 2" Dial Size, 1/4 Npt Lower Mount, Anti-Fog, Waterproof, Stainless Steel Case, for PRV-Tex Series: The circular dial is enclosed in a 304 stainless steel case for corrosion resistance. IP67 waterproof reKHAONB TE2000 Micro Differential Pressure Gauge High Precision Air Differentialvacuum Manometer Micro Measuring Range 0-60PA~0- Compression GaugesKHAONB TE2000 Micro Differential Pressure Gauge High Precision Air Differentialvacuum Manometer Micro Measuring Range 0-60PA~0- Compression GaugesDAYUAN DA Yuan 0-140 PSI Fuel Injection Pressure Gauge Tester Tool Kit Comes with an instruction, a complete kit including adapters, hoses & fittings, suitable for Chrysler, Ford, GM Jeep, NiDcnhfdsw Dcnhfdsw Digital Manometer Air Pressure Gauge -565 Differential Pressure Gauge ±105 KPaAir Pressure Meter Differential Extensive Range Capability: Capable of measuring distances up to 500 meters (1640 feet) and depths up to 0.8 meters (2.6JMNVYO TE2000 Micro Differential Pressure Gauge High Precision Air Differentialvacuum Manometer Micro Measuring Range 0-60PA~0- Compression GaugesGeneric Generic Differential Pressure Gauge, Pointer Type, Differential Pressure Gauge Panel, Installation Box for Air Condition 【Differential Pressure Gauge Installation Box】:Differential Pressure Gauge Installation Box is designed specifically forAmagogo Amagogo Micro Differential Pressure Gauge Installation Box Differential Pressure Gauge Installation Box for Ventilation 【Material】:Crafted from stainless steel, this installation box offers resistance to and wear, making it ideal for long-tFolpus Folpus Pointer Type Differential Manometer Gauge Panel Differential Pressure Gauge Installation Box for Air Conditioning 【Material】:Crafted from stainless steel, this installation box offers resistance to and wear, making it ideal for long-tJxngery Jxngery Differential Pressure Gauge Dial 1/8in NPT Aluminium for Electronics Pressure Dial: Able to measure positive pressure, negative pressure and differential pressure, this gauge is very reliabAmagogo Amagogo Micro Differential Pressure Gauge Installation Box Differential Pressure Gauge Installation Box for Ventilation 【Material】:Crafted from stainless steel, this installation box offers resistance to and wear, making it ideal for long-tFolpus Folpus Pointer Type Differential Manometer Gauge Panel Differential Pressure Gauge Installation Box for Air Conditioning 【Material】:Crafted from stainless steel, this installation box offers resistance to and wear, making it ideal for long-tAlmeigrity Almeigrity Differential Pressure Gauge Dial 1/8in NPT Aluminium for Electronics Pressure Dial: Able to measure positive pressure, negative pressure and differential pressure, this gauge is very reliabEigell Eigell Air Pressure Differential Gauge Micro Differential Pressure Gauge Micro Pressure Meter, 60pa 【Construction】: Micro Differential Pressure Gauge Crafted from plastic and metal materials, this gauge ensures long lastMinkissy minkissy Differential Pressure Gauge U Tube Stainless Steel Manometer for Home Applications and Vacuum Measurement with Measurement range: offers a comprehensive measurement range, making it ideal for various applications including hvac andGeneric Generic Digital Differential Pressure Gauges Dual Port Gas Manometer 12 Selectable Units HVAC Air Pressure Meter with La Wide Application: Gas pressure tester has wide range of measurement capabilities, suitable for natural gas systems, refrMUSISALY MUSISALY Stainless Steel Pressure Gauge Differential Pressure Gauge Manometer for Velocity Manometer gas pressure tester-- can be mounted on any vertical surface and built- level simplifies leveling,u-shaped preRUNROTOO RUNROTOO U-Tube Manometer Gas Pressure Tester - Differential Pressure Gauge - High Accuracy 0-4000pa Water Column Gauge Accurate readings: This pressure gauge delivers precise pressure measurement for natural gas, ensuring stable operationANKROYU ANKROYU HVAC Differential Pressure Gauge Aluminum Alloy Construction Transparent Cover for Clean Room Monitoring and Air [ULTRA-CLEAR VISIBILITY] Featuring a premium transparent polycarbonate cover that provides 180° distortion-free viewingCLSSLVVBN CLSSLVVBN ABS Clean Room Filter Measuring Meter Differential Pressure Gauge Meter Filtered Differential Pressure Gauges, High Precision: This Filtered Differential Pressure Gauge Meter ensures accurate measurement for clean room filters, makCLSSLVVBN CLSSLVVBN ABS Clean Room Filter Measuring Meter Differential Pressure Gauge Meter Filtered Differential Pressure Gauges, High Precision: This Filtered Differential Pressure Gauge Meter ensures accurate measurement for clean room filters, makJxngery Jxngery Smart Differential Pressure Gauge Intelligent Pressure Detection Meter with Pointer and Scale PLASTIC SHELL: The differential pressure gauge adopts a transparent case for easy observation, the plastic shell has gooJEWEDECO JEWEDECO U-shaped Pressure Gauge Differential Pressure Gauge Hvac System U-shaped Differential Manometer U tube pressure gauge:it has a simple design, but very practical in use, giving you a ,u shaped pressure gaugeYsXoWiui YsXoWiui Differential Pressure Gauge Mounting Box, Professional Compact And Lightweight Mounting Box for Air Conditionin Material:Crafted from PP and Stainless Steel, this installation box ensures long term use, lightweight but sturdyForgotten Books The Design, Development, and Evaluation of a Differential Pressure Gauge Directional Wave Monitor (Classic Reprint) ZyjGaliliad Digital Pressure Manometer with Data Recording, Differential Pressure Gauge, ±4KPa Dual Port Air Pressure Tester for Che Measurement: This digital pressure manometer delivers precise ±4KPa differential pressure readings using a high-resolutiChunnuan 1/8" BSPT Air Compressor Hydraulic Pressure Gauge 0-60 PSI Back Mount 40mm Dial Plate 0-60 PSI air pressure gauge with a 40mm dial plate.Generic Micro Air Differential Pressure Meter 0-500PA Mini Size Easy to Mounting Pointer Differential Pressure Gauge TE500 Product Name: Differential Pressure MeterCUOFYUNL CUOFYUNL Digital Manometer 12 Units Selectable Multi Function Digital Differential Pressure Gauge with Backlit LCD Displ 12 Units: The differential pressure gauge has 12 selectable measurement units, which are Pa, Psi, kgfcm2, bar, inH2O, ftRaincovo Raincovo Pressure Washer Gauge, 6000 PSI, 3/8 Inch Quick Connect, Pressure Gauge for Power Washer Application Widely: Pressure washer gauge fits pump and hose with 3/8 inch quick connect. Works with most brands of elecRaincovo Raincovo Pressure Washer Gauge, 6000 PSI, 3/8 Inch Quick Connect, Pressure Gauge for Power Washer Application Widely: Pressure washer gauge fits pump and hose with 3/8 inch quick connect. Works with most brands of elecJxngery Jxngery Differential Pressure Gauge Clean Room HVAC Filter Detection with Pointer Vacuum Components TRANSPARENT AND DISTORTION FREE: The transparent plastic surface is highly resistant to breakage. Hands and scales for dSaZaK SaZaK AS511 Digital Differential Pressure Gauge -39.98~39.98KPA Manometer Dual Port Air Gas Pressure Tester with LCD Bac 💌Professional Manometer: it can test the differential pressure of areas and pipes, wind velocity of pipeline. It has wiQANYEGN QANYEGN Differential Pressure Gauge, Pointer Pressure Gauge Differential Pressure Detection Gauge, Clean Room Filter Det ALUMINUM CONSTRUCTION: The Differential Pressure Gauge is built with aluminum body, which ensures durability and reliabiIndependently published Conquer the Backflow Prevention Device Exam: Comprehensive Study Guide for Vacuum Breakers, Valve Assemblies, Pressure D outdoorm outdoorm Digital Manometer 12 Units Selectable Multi Function Digital Differential Pressure Gauge with Backlit LCD Displ 12 Units: The differential pressure gauge has 12 selectable measurement units, which are Pa, Psi, kgfcm2, bar, inH2O, ftAlmeigrity Almeigrity Differential Pressure Gauge Clean Room HVAC Filter Detection with Pointer Vacuum Components TRANSPARENT AND DISTORTION FREE: The transparent plastic surface is highly resistant to breakage. Hands and scales for dEigell Eigell Differential Pressure Gauge Installation Box Mounting Box Sturdy for Ventilation Systems Differential Pressure Gauge Installation Box: Designed for the installation of differential pressure gauges, providing aTANIQIACA Differential Pressure Gauge, High Accuracy 1/8in NPT Aluminium, for Electronics, with Transparent Cover, Measures Positi High Quality Material: Made of lightweight and sturdy aluminium, this differential pressure gauge is easy to install andNUMNBE Digital Differential Pressure Gauge with 12 Units, High Accuracy Manometer, LCD Screen - Versatile Measurement, Customiz [High Precision Sensor]: Utilizes a highly accurate sensor to deliver precise differential pressure readings, suitable fQANYEGN Differential Pressure Gauges Dial, Aluminium Pressure Gauges, Electronics Differential Pressure Dial Tool for Electronic GOOD MATERIALS FOR EASY INSTALLATION: Constructed from aluminum, the lightweight and compact design of the differentialQANYEGN QANYEGN Smart Differential Pressure Gauges, Pressure Detection Meter, Round Differential Pressure Gauges Kit for HVAC, M PLASTIC SHELLS FOR DURABILITY AND VISIBILITY: The differential pressure gauges feature a transparent plastic shells thatPerfeclan Perfeclan Differential Pressure Gauge Mounting Box Professional Ligthweight Compact Mounting Box for Air Conditioning Un Versatile Application: Great for observing air pressure in clean rooms, ventilation systems, air conditioning units andLocadence LOCADENCE Digital Manometer, ± 2.999Psi Air and Gas Pressure Tester, Hand Held Industrial Positive Negative Pressure Gau [MULTIFUNCTIONAL] This digital manometer can measure temperature and pressure, and it supports maximum and minimum modesZCBYBT ZCBYBT Air Differential Pressure Gauge Micro Pressure Differential Gauge TE2000 60PA for Air and Non-Flammable Compatibl outdoorm outdoorm Digital Pressure Manometer with Data Recording Differential Pressure Gauge for Chemical Metallurgy ±4KPa Applicable Range: This digital manometer has a measurement range of ±4KPa, mainly used to measure the pressure differencMUNEFE MUNEFE Differential Pressure Gauge, Pointer Pressure Gauge, Transparent Plastic Pointer Pressure Gauge for Electronics PRESSURE DIAL: The differential pressure gauge is capable of measuring positive pressure, negative pressure, and differeQqmora Pressure Gauge Differential Pressure Meter, Backlit Digital Display Differential Pressure Gauge Data Registration Rapid Wide application: in the automotive industry for vacuum detection in the intake manifold, brake vacuum pump, exhaust pipXTevu XTevu Differential Pressure Gauge with Pointer for HVAC Clean Room Filter Detection Gauge, corrosions Resistant Design f TRANSPARENT AND DISTORTION Frees: The transparent plastic surface is highly resistant to breakage. Hands and scales forSOOLIU SOOLIU AC Adapter Compatible for Digital Manometer Z110VADPT Differential Air Pressure Meter Gauge Input: 100-240 VAC 50/60Hz global voltage use power supply PSUGrcfumo Grcfumo TL100 Digital Differential Pressure Gauges, Handheld Differential Pressure Gauges, Air Vacuum for Measuring Vent VERSATILE DIGITAL DIFFERENTIAL PRESSURE GAUGES: Featuring 11 different air pressure units, this handheld differential prBognajin Differential Pressure Gauge for HVAC Filter Detection, Pointer Vacuum Components, Aluminum Material, Resistant, High Acc WIDE RANGE OF APPLICATIONS: Ideal for microelectronics, aerospace, environmental engineering, bioengineering, smart builWIHFHGZ Digital Differential Pressure Gauge with LCD Screen, 12 Units, High Accuracy for System - Customizable Limits, Wind Spee [High Precision Sensor]: Utilizes an advanced high precise sensor to deliver accurate differential pressure measurementsZoeyilan Pressure Gauge, Well Pump Pressure Gauge, Differential Pressure Gauge, Dial Accuracy, Aluminium, Suitable for Electronic PRESSURE DIAL: This gauge accurately measures positive pressure, negative pressure, and differential pressure, providingTANIQIACA Differential Pressure Gauge for HVAC Filter Detection, Aluminum Material, High Accuracy, Resistant, with Pointer and Vac WIDE RANGE OF USES: Ideal for microelectronics, aerospace, environmental engineering, and more. This Differential PressuAce Instruments Digital Differential Pressure Gauge (Range: -250 to 250 Pascals) for Isolation Rooms Model: AI-DDPG-B Standard Range: -250 to 250 Pascals (Any Other Range Factory set as per Customer Specifications) | Accuracy: ±0.5% F.S |INSTRUKART Differential Pressure Gauge Calibrator with Master Gauge (Testo 510) |Precision Infrared Temperature Calibrator for HVAC Calibrator: Static Pressure Pump Calibrator (PSI-PP3 L) | Knobs: 2 Nos for Fine & Coarse Pressure Adjustment | PressureBaxnore Baxnore Differential Pressure Gauge, Aluminium Difference Pressure Dial, Accuracy 1/8 in NPT Differential Pressure Dial Pressure Measurement: This gauge effectively measures positive pressure, negative pressure, and differential pressure; IBaxnore Baxnore Round Differential Pressure Gauge Kit, Pressure Detection Meter with Pointer Scale, Accuracy Pressure Differenti Shell Material: The differential pressure gauge features a transparent plastic case; This casing provides toughness, makAce Instruments Digital Differential Pressure Gauge for Clean Rooms, HVAC, ACE AI-DDPG Range : -100 to +100 pascals/ -10.0 to +10.0 mm.W Measuring Parameter: Differential Pressure | Range: -100 to 100 Pascals | Accuracy: ±0.5% full Scale | Resolution: 1 Pas