The Danfoss 103 Timeswitch is a reliable electro-mechanical time switch designed for use with electric boilers. With the ability to be remotely switched, this 24-hour time switch is ideal for controlling your heating system efficiently. The white, wall-mounted unit is easy to install and operate, making it a convenient choice for indoor use in the United Kingdom. With a voltage of 240V, this Danfoss product ensures accurate timing for your heating needs.