Aube Programmable Thermostat (2, 3, 4 or 5 wire applications)

This programmable low voltage thermostat is suitable for use with forced hot air heating systems with central air conditioning. It automatically switches between heating and cooling as needed, making this thermostat particularly unique. You may program up to four settings per day, with each day being programmed differently if desired. It will retain the settings in memory even during a power outage, eliminating the need to re-program the thermostat. Suitable for 2, 3, 4 or 5 wire applications. 3.8" (97 mm) wide x 4.9" (125.5 mm) high x 1.0" (26 mm) deep.