The Hive Thermostat 2-Hive SLT3 Wireless Programmable is a white, square-shaped thermostat designed for central heating radiators. It features a 7-day programmable schedule, wireless connectivity, and smart home compatibility with Hive devices. The thermostat has a low voltage power source, with AA batteries for backup. It includes features such as auto system switching, frost protection, and fade-resistant properties. Easy to use and efficient, this thermostat is a convenient addition to any home heating system. Thermostat only