Air Sensing Switch, Application -, Contact Form SPDT, Electrical Connection Type Hardwired, Electrical Rating 300 VA Pilot Duty, Housing Material Steel, Housing Type Open Mounted, Includes -, Maximum Differential Pressure Setting 0.3 in wc, Maximum Operating Temperature 180 Degrees F, Maximum Pressure Rating 0.5 psi, Maximum Pressure Setting 5 in wc, Minimum Differential Pressure Setting 0.02 in wc, Minimum Operating Temperature -40 Degrees F, Minimum Pressure Setting 0.15 in wc