Robertshaw 2374-498 Universal Air Pressure Sensing Switch, 1.0" to 4.0" W.C. Dial‑A‑Width 0 Best Accuracy and Range:

0 Best Accuracy and Range:

and batteries — you’ll be able to hit the job running

in places that are difficult to access

Easy size identification with markings on top of every handle

easy-to-use settings and adjustments

Robertshaw 2374-498 Universal Air Pressure Sensing Switch, 1.0" to 4.0" W.C. Dial‑A‑Width 0 Best Accuracy and Range:Robertshaw 2374 498 Universal Air Pressure Sensing Switch, 1. 0" to 4. 0" W. C. The Robertshaw 2374 Series Adjustable Air Sensing Switches are designed to replace a wide variety of air sensing switches found in residential and light commercial applications including furnaces, electronic air cleaners and humidifiers. Two models are currently available with adjustable ranges. Both models are provided with an SPDT switch that can be actuated by positive