Honeywell SA12020 ADEMCO 6139 THERMOSTAT. SYSTEM ,

The Honeywell SA12020 ADEMCO 6139 Thermostat is a programmable thermostat designed for heating, cooling, and air systems. With the trusted brand of Honeywell, users can rely on the accuracy and efficiency of this thermostat to maintain a comfortable environment in their homes. Easy to use and programmable, this thermostat is an essential component for managing the temperature in any living space.