5-1-1 day programmable thermostat provides convenient weekday, Saturday, Sunday scheduling with accurate temperature control. Programmable thermostat has an easy-to-read backlit display. Features larger, easy-to-read characters and soft touch buttons for easy operation. Other features include: Easy do-it-yourself Install Wizard, precision temperature control +/- 1 deg (degree). Compatible with most single stage heating, cooling and heat pump (without aux) systems. 2 AA batteries included. Mounting hardware and installation guide included. 3 year limited warranty.