The Ranco ETC-212020-000 is a microprocessor based family of electronic temperature controls, designed to provide on/off control for commercial heating, cooling, air conditioning and refrigeration. The ETC is equipped with a liquid crystal display (LCD) that provides a constant readout of the sensed temperature, and a touch keypad that allows the user to easily and accurately select the setpoint temperature, differential and heating/cooling mode of the operation. Input Voltage: 24V, 50/60 Hz Temperature Range: -30°F to 220°F Differential Range: 1°F to 30°F Switch Action: SPDT Sensor: Thermistor, 1.94 in. long x 0.25 in. diameter with 8 ft. cable, IP67 rated Enclosue: NEMA 1, Plastic Agency Approvals: UL Listed, File E94419, Guide XAPX CSA Certified, File LR68340, Class 4813 02