TH4210U2002 Honeywell Thermostat

Honeywell Thermostat, T4 Pro Series, 20 - 30 VAC, 50/60 Hz, 7 Days, 5-1-1 Days, 5-2 Days, Non-Programmable Programmability, Automatic, Manual, Battery, Hardwired, 1 Heat/1 Cool Conventional Systems, 2 Heat/1 Cool Heat Pumps Stages, Heat-Off-Cool-Auto-Emergency Heat (System), Auto-On (Fan) Switch Position, Relay Switch, 3.93 sq-in Display, +/-1 deg F Differential Temperature, 40 to 90 deg F Heat, 50 to 99 deg F Cool Temperature Settings, 37 to 102 deg F Operating, - 20 to 120 deg F Shipping and Storage, 5 to 90% RH Non-Condensing Humidity Rating, 0.5 deg C Accuracy, UWP System Mounting, White, 4-1/16 in L x 4-1/16 in W x 1-3/32 in D