Honeywell Thermostat, Series: T8775C, Digital, Non-Programmable Thermostat, Electronic Switch, Terminal Designations: R, RC, W, Y, G, O, B, System Switching: Cool/Off/Heat, Fan Switching: Auto/On, Thermistor Sensor, 1 Stage, 5 to 90 % Humidity, 3/4 sq-in Large Back-Lit Display, 20 to 30 VAC, Round Mounting, Premier White®, 3-11/16 in Dia x 1-7/16 in D, Domestic/Import: Import
The Digital Round® thermostats provide 24 V control of heating only or heat/cool systems.