• Digital Anemometer
    41,803.81

    Dwyer 475-1-FM Mark III Handheld Digital Manometer

    Dwyer 475-1-FM Mark III Handheld Digital Manometer tests positive, negative or differential pressures of air and natural gases, ranging from 0 to 20.00 “w.c. (4,982 kPa). Double push pads on the front panel switch on / off, auto-zero, and pressure sensor selection, enabling easy function with no set-up required. When used with the Dwyer Pitot tube, the Dwyer 4751FM can also be used.

    Applications: Monitoring natural gas pressures on boilers and other combustion equipment, Air velocity monitoring, Field calibration of other instruments monitoring or troubleshooting HVAC systems

  • Dwyer 477AV-1 Handheld Digital Manometer

    Dwyer 477AV-1 Handheld Digital Manometer

    Dwyer 477AV-1 Handheld Digital Manometer measures pressure, flow, and velocity along with a number of other convenient features. The built-in air velocity and flow calculations provide accuracy and conserve time and error associated with manual calculations. Also featured on this unit are adjustable zero and span values for calibrating in the field, as well as a damping feature to compensate for the fluctuating readings.

    Applications: Airflow monitoring, when used with a Dwyer® pitot tube
    • Duct static pressure
    • Commercial air balancing
    • Building-zone pressure.

  • Testo 557 Digital Vacuum Gauge
    50,021.19

    Testo 557 Digital Vacuum Gauge

    Brand:Testo

    Testo 557 Digital Vacuum Gauge fulfills numerous functions, which are required for working on refrigeration systems and heat pumps in just one instrument. The testo 557 digital manifold has a 4-way valve block, a large backlit display, and sight glass. Two NTC thermistor clamp probes provide superior accuracy for simultaneous, real-time superheat and subcooling readings.

    Application: superheating/subcooling calculation, vacuum measurement, temperature-compensated leakage test.

     

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