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  • Dwyer Series Mark II 25 Molded Plastic Manometer, Inclined-Vertical Scale, 0 to 3 inH2O Measuring Range, Red Gauge Fluid, 0.826 sp. gr.

    The Dwyer Mark II 25 inclined differential manometer with red gauge fluid has a 0 to 3 inH2O measuring range, built in zero level and molded plastic case for monitoring air velocity and air filter performance, and taking pressure measurements above and below atmospheric pressure. Red gauge fluid is freeze-proof and has lower evaporation rate for use in cold environments, and produces expanded scale viewing for improved reading resolution. The built-in zero level provides linear calibration. The manometer has a styrene-acrylonitrile housing, indicating tube, and fluid wells for strength and durability. The molded ABS knobs and zero adjust plunger and shock-mounted glass level vial are wear-resistant. Leakproof O-ring seals and overflow tank reduce the risk of fluid loss. Scales are lithograph printed on aluminum to ease reading, and are epoxy coated to protect against wear. The manometer can be mounted on any vertical surface. SpecificationsPressure typesSingle and differentialMedia typeAirCase materialStyrene-acrylonitrileMeasuring range0 to 3 inH2OFluid typeRed gauge fluid, 0.826 sp. gr.MountStand and vertical mountAccuracy+ or - 3% full scaleMaximum pressure10 psi/70 kPaMaximum temperature140 degrees F/60 degrees CWeight1.04 lbs./472gDimensions5-29/32 x 7-13/32 x 2-1/4 inches (...

    • ASIN: B009PAN3C8
    • Color: Original Version
    • Brand: Dwyer
    • ASIN: B009PAN3C8
    • UPC: 094700679932
    • Part No: 25

  • Dwyer Series 475 Mark III Handheld Digital Manometer, 0-10.00"WC Range, 5 psig Maximum Pressure

    The Dwyer Series 475 Mark III intrinsically-safe digital manometer provides positive, negative, and differential pressure measurements, and is used to perform field calibration, monitoring or troubleshooting HVAC systems, performing clean room inspections, air velocity monitoring, and natural gas appliance-line testing. The meter is FM-approved intrinsically safe for Class 1, Div. 1, Group A, B, C, D, T4 hazardous locations. It has an accuracy of + or - 0.5% of full scale at 60 to 78 degrees F, and + or - 1.5% full scale at 32 to 60 and 78 to 104 degrees F. The extruded aluminum case provides durability. The backlit four-digit LCD displays the pressure measurement. The zero function nulls minor pressure differences before measuring. Standard connections accept 1/8" or 3/16" inside diameter (ID) vinyl or rubber tubing. The meter is powered by a 9V battery (included) and automatically shuts off after 20 minutes to preserve battery life. SpecificationsPressure typesPositive, negative, and differentialMedia typeAir and compatible combustible gasesCase materialExtruded aluminumDisplayFour-digit LCDTemperature limits0 to 140 degrees F/-17.8 to +60 degrees CCompensated temperature limits32 to 104 degrees F/0 to 40 degrees CDimensions6-17/32 x 2-13/16 x 29/32 (H x W x D)Power9V alkaline ...

    • ASIN: B009PAFIWG
    • Brand: Dwyer
    • ASIN: B009PAFIWG
    • Part No: 475-0-FM

  • Dwyer Series 476A Single Pressure Digital Manometer, -20.0 to +20.0 inH2O Measuring Range, + or - 1.5% Accuracy F.S., Battery Operated

    The Dwyer Series 476A single-pressure digital manometer is used to perform single-pressure measurements and to set supply pressures, verify pressure switch operation, adjust regulators, check pneumatic systems, and computer peripherals. The meter is suitable for use with air and compatible gases, and has an accuracy of + or - 1.5% of full scale. The extruded aluminum case provides durability. The four-digit LCD displays the pressure measurement, and a zero function nulls minor pressure differences before measuring. SpecificationsPressure typesSingleMedia typeAir and compatible gasesCase materialExtruded aluminumPressure unitsinH2O, mmH2O, bar, mbar, psi, inHg, mmHg, kPaConnection type3/16" or 1/4" inside diameter (ID) tubingMaximum pressure5 gauge psiDisplayFour-digit LCDResolution0.02 (inH2O)Temperature limits0 to 140 degrees F/-17.8 to +60 degrees CCompensated temperature limits32 to 104 degrees F/0 to 40 degrees CDimensions6-17/32 x 2-13/16 x 29/32 (H x W x D)Power9V alkaline battery (included)H is height, the vertical distance from the lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.Manometers measure the pressure of a liquid or gas. They are used in laboratory, medical equipment, engineer...

    • ASIN: B009PAFR6S
    • Brand: Dwyer
    • ASIN: B009PAFR6S
    • UPC: 696731873640
    • Part No: 476A-0

  • Dwyer Series MPR Miniature Pressure Regulator, Zinc Body, Air Only, Range 0-5 psi

    The Series MPR Miniature Pressure Regulators are compact units that provide low cost, high performance pressure regulation of compressed air or air/water. The low torque, non-rising adjustment knob with locking capability provides easy and precise adjustment. Models for use with air are self relieving. Models for air/water are non-relieving.

    • ASIN: B009PANOE0
    • Brand: Dwyer
    • ASIN: B009PANOE0
    • Part No: MPR1-0

  • Dwyer Slack Tube Series 1212 Gas Pressure Kit for Servicing Gas Appliances

    A handy, complete kit containing a 16" Slack Tube® Manometer, necessary tubing and connection fittings for checking gas pressures in virtually all gas appliances such as water heaters, furnaces, stoves and dryers. Different range manometers may be specified at corresponding prices. Compared to the cost of purchasing items separately the assembly of component parts into kit form represents substantial savings.

    • ASIN: B008FM8O6C
    • Brand: Dwyer
    • ASIN: B008FM8O6C
    • Part No: 1212

  • Dwyer Series 160 Stainless Steel Pitot Tube, 0.3125" Diameter x 18.625" Insertion Length

    Ideal for use with our precision manometers and air velocity gauges, Dwyer® Pitot Tubes are constructed from corrosion resistant stainless steel for a lifetime of service. ASME design meets AMCA and ASHRAE specifications for maximum accuracy over a wide variety of flow conditions. No correction factors required as ASHRAE tip design yields a calibration factor of 1. ASHRAE design needs no calibration! Permanent, stamped insertion depth graduations on sides of 160 series facilitate accurate positioning. Static pressure port is parallel to sensing tube allowing quick, easy alignment of tube with air flow. Low sensitivity to misalignment gives accurate reading even when tube is misaligned up to 15 degrees. Various standard sizes are available for use in ducts as small as 4" dia. or as large as 36 ft. dia. A universal model fits user supplied 3/4" schedule 40 (standard) pipe in any length. Several convenient mounting options are available for permanent installations.

    • ASIN: B009PADZEO
    • Brand: Dwyer
    • ASIN: B009PADZEO
    • UPC: 094700743329
    • Part No: 160-18

  • Dwyer Flex-Tube Series 1222 U-Tube Manometer, 4-0-4"WC using Red Gauge Fluid

    Dwyer 1222 series Flex-Tube U-tube type manometer uses red gauge fluid, or mercury or green color concentrate to provide positive, negative, and differential pressure measurement for determining velocity and static pressures, leakage, fan and blower efficiency, filter resistance, and gas pressures. The columns are composed of 1/8" outside diameter flexible and shatterproof clear butyrate tubing for use with colored water, red fluid, or mercury (sold separately). The manometer is calibrated in inH2O or mmH2O using water and is available in W/M-style for use with fluorescein green concentrate or mercury (sold separately), or D-style for use with red gauge fluid. The water column has 1/10" divisions for inch scales or 2mm for metric units. Units are silkscreened in black on a white background to ease reading. The manometer has magnetic clips to mount on vertical surfaces and a clamp bar to prevent slipping. Magnets are removable to customize mounting. The manometer includes a bottle of fluorescein green or red gauge fluid.SpecificationsPressure typesStatic, vacuum, and differentialMedia typeAir and gasWetted parts materialAcrylic plasticCase materialVinyl tubingScaleInches of water, inches of mercuryFluid typeRed or green gauge fluid, or mercuryConnection1/8"MountMagnetic clipsMaxim...

    • ASIN: B009P94NN2
    • Brand: Dwyer
    • ASIN: B009P94NN2
    • Part No: 1222-8-D

  • Dwyer Magnehelic Series 2000 Differential Pressure Gauge, Range 0.25-0-0.25"WC

    Select the Magnehelic gage for high accuracy--guaranteed within 2% of full scale--and for the wide choice of 81 models available to suit your needs precisely. Using Dwyer's simple, frictionless Magnehelic gage movement, it quickly indicates low air or non-corrosive gas pressures--either positive, negative (vacuum) or differential. The design resists shock, vibration and over-pressures. No manometer fluid to evaporate, freeze or cause toxic or leveling problems. It's inexpensive, too.

    • ASIN: B008HQ4MP8
    • Color: Grey
    • Brand: Dwyer
    • ASIN: B008HQ4MP8
    • UPC: 094700703163
    • Part No: 2300-0

  • Dwyer DPGA Series Digital Pressure Gauge for Liquids and Compatible Gases, Range 0 to 100 psig

    The Series DPGW is the only economic digital pressure gage for liquids with the ability to select engineering units on the market. With its 1% accuracy and digital push-button zero, the DPGW is the perfect choice for digitally monitoring the pressures of air and compatible liquids and gases.

    • ASIN: B008HOWUT0
    • Brand: Dwyer
    • ASIN: B008HOWUT0
    • Part No: DPGW-08

  • Dwyer Series 160 Stainless Steel Pocket Size Pitot Tube, 1/8" Diameter, 6" Insertion Length

    Ideal for use with our precision manometers and air velocity gauges, Dwyer® Pitot Tubes are constructed from corrosion resistant stainless steel for a lifetime of service. ASME design meets AMCA and ASHRAE specifications for maximum accuracy over a wide variety of flow conditions. No correction factors required as ASHRAE tip design yields a calibration factor of 1. ASHRAE design needs no calibration! Permanent, stamped insertion depth graduations on sides of 160 series facilitate accurate positioning. Static pressure port is parallel to sensing tube allowing quick, easy alignment of tube with air flow. Low sensitivity to misalignment gives accurate reading even when tube is misaligned up to 15 degrees. Various standard sizes are available for use in ducts as small as 4" dia. or as large as 36 ft. dia. A universal model fits user supplied 3/4" schedule 40 (standard) pipe in any length. Several convenient mounting options are available for permanent installations.

    • ASIN: B009PAE7GE
    • Brand: Dwyer
    • ASIN: B009PAE7GE
    • UPC: 094700665928
    • Part No: 167-6