This Honeywell RTH221B1021 thermostat is designed to provide you with a user-friendly, programmable electronic thermostat for your home or office. With its rectangular shape and white color, this wall-mounted thermostat is perfect for anyone who wants to easily control their heating and cooling systems.

It has an easy-to-read display, and it is programmable for up to one week. This thermostat is compatible with most low-voltage heating and cooling systems, and it offers a heat-cool-off system switching option. The Honeywell RTH221B1021 thermostat runs on AAA batteries and is made in the United States.