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Dwyer Magnehelic Pressure Gauge
Select the Dwyer Magnehelic® differential pressure gage for high accuracy--guaranteed within 2% of full scale--and for the wide choice of pressure gauge models available. Using it's simple, frictionless Magnehelic® 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.
The Magnehelic® differential pressure gauge is commonly used to measure fan and blower pressures, filter resistance, air velocity, furnace draft, pressure drop across orifice plates, liquid levels with bubbler systems and pressures in fluid amplifier or fluidic systems. It also checks gas-air ratio controls and automatic valves, and monitors blood and respiratory pressures in medical care equipment.