Air Pressure Switch, Application Duct Heater Control, Humidity Detection and Control, Air Flow Control, Contact Form SPDT, Electrical Connection Type Screw Terminals, Electrical Rating 9.8 A @ 120V, Housing Type Conduit Box, Includes Mounting Bracket, Maximum Differential Pressure Setting 0.525 in wc, Maximum Operating Temperature 167 Degrees F, Maximum Pressure Rating 1 psig, Maximum Pressure Setting 12 in wc, Minimum Differential Pressure Setting 0.135 in wc