The Series 475 Handheld Digital Manometer measures positive, negative, or differential pressures of air and natural gases in ranges from 1 in w.c. (0.249 kPa) to 150 psid (10.34 bar). The dual push pads on the front panel control the on/off, auto zero, and pressure unit selection, allowing for simple operation with no set up needed. When used with a Dwyer® Pitot tube, the Series 475 can also be used as an air velocity gage.           

NIST CALIBRATION available in Product Configurator.

475-AV air velocity kit

Product Applications

• Monitoring natural gas pressures on boilers and other combustion equipment

• Air velocity monitoring, when used with a Dwyer® Pitot tube and AV caculator

• Field calibration of other instruments

• Monitoring or troubleshooting HVAC systems

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