Fieldpiece SDMN6 Dual Port Manometer and Pressure Switch Tester U520LF Driver arms fold conveniently into

Driver arms fold conveniently into the body for easy storage

low profile design

Overall Width:  6

Clip locking jaws over valve core ball end

Needle Nose Pliers strip

Fieldpiece SDMN6 Dual Port Manometer and Pressure Switch Tester U520LF Driver arms fold conveniently intoFieldpiece SDMN6 Dual Port Manometer and Pressure Switch Tester Furnace Testing Excellence Gas, static, and differential pressure Test pressure switches Easily calibrate any adjustable pressure switch Great for diagnosing furnace performance The SDMN6 dual port manometer measures gas and static pressure and also accurately tests pressure switches by simulating a draft with an internal pump. A pressure switch is a safety device that prevents the