The Honeywell T4R Wireless 7-Day Programmable Thermostat Y4H910RF4003 is a white, wall-mounted thermostat designed for central heating radiators. It is powered by AA batteries and features a push-button control style. With a 1-year manufacturer warranty, this thermostat offers 4 heat stages and 7-day programmability, making it easy to control your home's heating system. Its wireless design allows for easy installation and compatibility with a range of central heating systems. Made of plastic and with child-resistant resistance properties, this thermostat is a reliable and efficient choice for any home in the United Kingdom.