Differential Pressure Mechanical Pressure Switch

The Series 1950 Explosion-Proof Differential Pressure Switch features a durable weatherproof housing, external set point adjustment, and is ideal for HVAC and process applications.

The Photohelic® Switch/Gages offer precise differential pressure monitoring with easy-to-read analog displays. Compact and durable, they are suitable for various applications.

Miniature Pressure Switch applies to air proving, ventilation flow, and pressure monitoring. Low Cost. Lightweight, but shock and vibration resistant.

Miniature Adjustable Pressure Switch applies to industrial, HVAC, medical and automotive applications. Gold inlay contacts. Small and lightweight.

The Dwyer® Series 1950G Explosion-Proof Differential Pressure Switch is weatherproof and UL listed, designed for natural gas and outdoor use, ensuring safety and reliability.

Low Differential Pressure Switches for HVAC and high duct static cutout applications. No power is required, set point adjustment on the switch

Compact Low Differential Pressure Switches

Compact Low Differential Pressure Switches

The Dwyer® Differential Pressure Switch features a floating contact design for high/low actuation, perfect for damper positioning and duct air control.

Single and Dual Pressure Switch which applies to damper positioning and duct air control. Provides leak-proof construction.

The Mini-Photohelic Differential Pressure Switch/Gage measures non-corrosive gas pressures with dual switch points and LED indicators, perfect for fume hoods and clean rooms.

Wet/Wet Differential Pressure Switch for most gases and water based solutions. External adjustable set point, integral mounting flange and a removable electrical terminal block

The Gas Pressure/Differential Pressure Switch works with air and gases, has an external setpoint adjustment, and is suitable for natural, manufactured, or LP gas applications.

Double Bellows Differential Pressure Switch accurate switch triggers in high pressure applications. Optional weatherproof construction and explosion-proof enclosure.

Gas Pressure Switch applications in gas furnaces and natural, manufactured or LP gas applications. Compact and low cost. Ideal for high or low gas pressure interlock.