Honeywell Round" Thermostat, Manual, Series: T87N, Non-Programmable Thermostat, Relay 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, 20 to 30 VAC, Round Mounting, Premier White®, 3-11/16 in Dia x 1-3/4 in D, Domestic/Import: Import
The Round® thermostats provide electronic control of 24VAC heating and cooling systems with the classic twist to set dial.