The Danfoss Randall 103 24 Hour Mechanical Timeswitch is a white electric unit designed for central heating programmers. This programmable timeswitch, suitable for boiler heating systems, features a timer function and operates on a 240V voltage supply. With a compact height of 135mm and width of 106mm, this Danfoss model is a reliable and efficient choice for controlling your heating system in the United Kingdom. With its wall mounting location and energy-efficient design, it is a convenient and practical addition to any home heating setup.