Timeguard Boost Master
Detailed on this page is the Timeguard Boost Master Range, designed to be used in conjunction with immersion and room heaters. Boost timers simply increase the On Time of your heaters with a simple press of a button. The on time can be increased in 4 steps for up to 2 hours or 4 hours dependant on the version. These digital units fit standard flush or surface mounted boxes with a minimum 25mm depth.