White Rodgers Universal Digital Thermostat Universal non-programmable thermostat has a large, backlit screen. Features larger, easy-to-read characters and large keys for easy operation. Auto change from heat to cool. Other features include Easy do-it-yourself Install Wizard, precision temperature control /- deg degree , temperature limits, furnace filter change reminder, low profile design, keypad lockout. Built-in level for mounting. Compatible with most single-stage and multi-stage heating, cooling and heat pump systems. Not compatible with electric baseboard heat. 2 AA batteries included. Mounting hardware and installation guide included. 3 year limited warranty. Programmable Non-Programmable, Color White, Width 6 , Height 3-3/4 , Depth 1-1/8 , Pkg Qty 1, Package Type Clamshell Cancer and Reproductive Harm www.P65Warnings.ca.gov