![WISE CONTROL INC : Indicating type differential pressure switch with bellows element_P640 series(P641, P642) WISE CONTROL INC : Indicating type differential pressure switch with bellows element_P640 series(P641, P642)](http://www.wisecontrol.com/uploads/sg1507015/201811/e979905e789e3a884fb8c666f2270656_crop.png?t=16734a254be)
WISE CONTROL INC : Indicating type differential pressure switch with bellows element_P640 series(P641, P642)
![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 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](https://dwyer-inst.com/media/catalog/product/p/g/pg_600x600.gif)
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
![Air Differential Pressure Switch, IP65 Protection, PSS-series | Ventilation Control Products Sweden AB Air Differential Pressure Switch, IP65 Protection, PSS-series | Ventilation Control Products Sweden AB](https://images.staticjw.com/vcp/2569/ip65-air-dp-switch.jpg)