

The Air Pressure Sensing Switch Kit (Part Number: RSS-498-211) is a crucial component designed to maintain optimal pressure in your appliance. With a range of 1.0 to 4.0 W.C. and a temperature range of -40°F to +180°F, this kit is ideal for aftermarket residential furnaces, electronic air cleaners, and humidifiers. The adjustable set point ranges have been factory set to activate on a pressure rise.