Resideo - Honeywell Home THX9421R5021WW Thermostat

Thermostat; Type 7 Day Programmable/Non-Programmable, Wireless, 4-Heat/2-Cool (Heat Pump), 3-Heat/2-Cool (Conventional), Auto/Manual Changeover; Color White; Voltage Rating 18 to 30 Volt AC at 50/60 Hertz; Size 4-1/2 Inch Width x 7/8 Inch Depth x 3-1/2 Inch Height; Display Size 8.06 Square Inch; Humidity 5 to 90 Percent Relative (Non-Condensing); Terminal Designation R, C then RedLINK to Equipment Interface Module; Ambient Temperature 32 to 120 Deg F; Setting Temperature Rating 40 to 90 Deg F (Heat), 50 to 99 Deg F (Cool)