Garrison Digital Thermostat, 2 Stage Heat-cool Programmable

Programmable 2-Stage heat / 2-Stage cool thermostat with large LCD display screen. The thermostats are designed to operate with most gas, oil, electric boiler or 2-wire systems, and air conditioning systems that have 24-volt or millivolt control. | Features: | 2-Stage Heat / 2-Stage Cool | Programmable 7 days or 5+2 (4 ranges) | Hold & Override function. | 24 Volt with battery backup. | 2-AA Batteries (included). | Auto Changeover | Gas, Oil and Electric systems. | Heat Pump systems. | Millivolt system. | Backlight | Front battery door. | Quick-connect wiring terminal | Static Protection | F/C temperature selectable indicator. | High/Low Temperature protection. | Compressor short cycle protection. | Auto recovery. | Filter Check monitor. | Energy usage counter. | 1st. Stage temperature differential rating | 2nd. Stage temperature differential setting. | Separate O&B terminals. | Keypad lockout.