The Carrier Programmable Thermostat 7-Day Model 997-970210-3 is a programmable thermostat designed for home use. With a sleek rectangular design and a wall-mounted installation, this thermostat offers 7-day programming for efficient climate control. The digital control style and low voltage operation make it easy to use and energy-efficient. Compatible with Carrier brand systems, this thermostat provides two heat stages and operates on a corded electric power source. Additionally, it can be integrated into a smart home system using a proprietary smart home protocol for added convenience.