Electric Wall & Ceiling Heater Thermostat, 0 to 10V DC, 3/4 in Overall Depth, 5 1/2 in Overall Height, 3 3/4 in Overall Width, Number of Poles 2, 10V DC Thermostat Control Voltage, 2 A, Contact Rating 0 to 10V AC, Housing Color White, Wire Leads, Mounting Type Wall Mount, Programming Capability Not Programmable, Mechanical Selector Dial, UL Listed, Maximum Operating Temperature 90 Degrees F These thermostats control the temperature of electric wall and ceiling heaters. The temperature range is digitally or electronically programmed or set with a dial and will turn the heater on and off to maintain the desired temperature.