Braeburn 1220 Non-Programmable 2H / 2C Large 3 sq. In. Display with bright blue backlight, adjustable temperature limits, hardwire or battery powered, permanent memory retains settings Separate O & B terminals, compressor short cycle protection, adjustable temperature differential Auxiliary heat indicator, low battery indication, ESD guard electronic circuitry, Front access reset button, ,F/C switch , gas/electric Fan switch, Mount to horizontal box, English/Spanish packaging and instruction card with free contractor branding