Series PG | Gas Pressure/Differential Pressure Switch is used with air and other compatible gases. Clear easy-to-read, and convenient external setpoint adjustment. Applications include natural, manufactured or LP gas. | Dwyer Instruments
Differential pressure switch - DW03UN - WIKA Australia
Dwyer Air Differential Pressure Switch
Differential pressure switch 930 adjustable from 20 to 5000 Pascal - Beck Sensortechnik GmbH