Thermostat only. The Hive V3 Active Heating Thermostat STL3 is a programmable heating control system by Hive, designed with a touch screen interface for easy use. It operates on battery power, specifically AA batteries, and has a wireless wire configuration for convenience. This thermostat is compatible with Hive's smart home system, providing users with a seamless and efficient way to control their heating settings. Perfect for those looking for a reliable and user-friendly heating solution for their home.