Air Pressure Sensing Switch Kit; Type Field Adjustable; Pressure Media Air; Contact Configuration SPDT; Contact Rating 120/277 Volt AC 5 Amp (Non-Conductive), 120 Volt AC 1 Amp (Pilot Duty); Connection Type (3) Male 90 Degree Quick Connect Terminal; Application Electronic Air Cleaner, Residential and Light Commercial Furnace and Humidifier; Approval UL; Includes Contractor Kit; Adjustable Range 1 to 4 Inch WC; Temperature Rating -40 to 190 Deg F