Dwyer Instruments Inc. 2000-0 Magnehelic Pressure Gauge

Dwyer Instruments Inc. 2000-0 Magnehelic Pressure Gauge. Very good condition. No manual. As shown. A magnahelic gauge can 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. 4.5″ diameter. 4″ depth required for connection.