The Siemens RWB2007 Twin Channel Digital 7-Day Programmer is a white, electric-powered thermostat that is compatible with central heating radiators. It has a compact 2.95-inch display and is designed for easy surface mounting. This programmable thermostat allows for 7-day programming with 6-wire wire configuration and operates on a 240V system. Manufactured in 2007, it comes with mounting hardware and a 1-month manufacturer warranty. With its digital control style and temperature sensor technology, this Siemens thermostat offers convenient and efficient heating control for your home.