Home / Products / Pressure / Differential Pressure / Switches Products Calibration Services DEMO 1 DEMO 2 DEMO 3 DEMO 4 DEMO 5 Pressure DEMO 1 DEMO 2 DEMO 3 DEMO 4 DEMO 5 Air Quality DEMO 1 DEMO 2 DEMO 3 DEMO 4 DEMO 5 Air Velocity DEMO 1 DEMO 2 DEMO 3 DEMO 4 DEMO 5 Flow DEMO 1 DEMO 2 DEMO 3 DEMO 4 DEMO 5 Level DEMO 1 DEMO 2 DEMO 3 DEMO 4 DEMO 5 Temperature DEMO 1 DEMO 2 DEMO 3 DEMO 4 DEMO 5 Test Equipment DEMO 1 DEMO 2 DEMO 3 DEMO 4 DEMO 5 Valves DEMO 1 DEMO 2 DEMO 3 DEMO 4 DEMO 5 Miscellaneous DEMO 1 DEMO 2 DEMO 3 DEMO 4 DEMO 5 Hazardous Rated DEMO 1 DEMO 2 DEMO 3 DEMO 4 DEMO 5 Series 1800 Set Points from 0.07" to 85" w.c. Repetitive Accuracy within 2% Low Differential Pressure Switch for General Industrial Service which is ATEX approved and applies to mechanical equipment control and processes. View More Series 1900 Set Points from 0.07" to 20" w.c., Repetitive Accuracy within 3% Compact Low Differential Pressure Switches View More Series 1950 Compact, Low Cost, Explosion-proof and Weatherproof Explosion-proof Differential Pressure Switch applies to HVAC, processes, and all-weather. Used with air or compatible gases. Applications with hazardous atmospheres. View More Series H3 Setpoints from 10" w.c. to 200 psid – Rated 1500 psig, Weatherproof Explosion-Proof Differential Pressure Switches View More Series 1950G Explosion-proof, Weatherproof, Compatible with Natural Gases Explosion-proof Differential Pressure Switch combines the best features of the popular Pressure Switch with the benefit of natural gas compatibility. Compact and easy access to the SPDT relay. View More Series 1620 High Reliability, Repetitive Accuracy within ±1% Single and Dual Pressure Switch which applies to damper positioning and duct air control. Provides leak-proof construction. View More Series 1630 Visual Set Point Adjustment in 5 Standard Ranges, 0.05" to 12" w.c. Repetitive Accuracy within ±1% Large Diaphragm Differential Pressure Switches are used with air or compatible gases. Applications include damper positioning and industrial service. View More Series 1640 Visual Set Point Adjustment, Adjustable Null Zone Floating Contact Null Switch for High and Low Actuation which applies to damper positioning and duct air control. For use with air or compatible gases. View More Series DP Visible Setpoints, Adjustable or Fixed Deadband . . . High Pressure Ranges Double Bellows Differential Pressure Switch applies to accurate switch triggers in high pressure applications. Optional weatherproof construction is for outdoor use and explosion-proof enclosure. View More Series PG External Adjustment, Visible Dial, Hermetically Sealed Snap or Mercury Switch 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. View More Series 1996 Compact, Low Cost, Range 1.4 to 20" w.c. Gas Pressure Switch used with natural, manufactured, or LP gas. Applications in gas furnaces and natural, manufactured or LP gas applications. Compact and low cost. Ideal for high or low gas pressure interlock. View More Series MDS Shock and Vibration Resistant, Lightweight and Compact, Gold Contacts Miniature Pressure Switch applies to air proving, ventilation flow, and pressure monitoring. Low Cost. Lightweight, but shock and vibration resistant. View More Series MDA Adjustable Set Points from 0.1 to 100" of H2O Miniature Adjustable Pressure Switch applies to industrial, HVAC, medical and automotive applications. Gold inlay contacts. Small and lightweight. View More Series A4 Adjustable Set Point, High Overpressure Differential Pressure Switch which is capable of carrying moderate shock and vibratory loads. Piston design allows mounting in any orientation. Offers field adjustments and can handle system pressures up to 6000 psig. View More Series PDPS Low Pressures down to 0.07" w.c. Compact Economic Differential Pressure Switch which are available for pressure, vacuum, and differential applications. View More Series ADPS/EDPS With Dual Scale Field Adjustable Set Point Knob HVAC Differential Pressure Switch which applies to controlling air and fire-protection dampers and monitoring air filters and ventilators. View More Series 1831 Manual Reset, No Power Required DPDT Low Differential Pressure Switches which applies to HVAC and high duct static cutout applications. Absolutely no power is required to operate the DPDT switch. Set point adjustment on the switch is easily accessible for modifying the set point. View More Series BDPA 24 Volt or Battery Powered, Built-in Audible and Visual Alarm Adjustable Differential Pressure Alarm. Designed for overpressure, vacuum, and differential pressure applciations. View More Series DX NEMA 4X Enclosure, Low Differential Set Points Wet/Wet Differential Pressure Switch for use with most gases and water based solutions. Externally adjustable set point, integral mounting flange and a removable electrical terminal block for quick and easy installation. View More Series EWDP EnOcean® Wireless Technology Wireless Communications Adjustable Differential Pressure Switch used to monitor pressure, vacuum, and differential pressures. View More Series AT-ADPS The ADPS in Flameproof ATEX/IECEx Enclosure ATEX/IECEx Approved Differential Pressure Switch designed for pressure, vacuum, and differential pressure applications in hazardous areas. View More Series AT-1800 The 1800 in Flameproof ATEX/IECEx Enclosure Series AT-1800 ATEX/IECEx Approved Low Differential Pressure Switch combines small size with 2% repeatability. View More
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