The fused Spur Time Switch is simple to use as all the buttons are clearly marked and there are two LED indicators so you can see clearly when it is on. The FST77 has an optional 1 or 2 hour boost facility and an automatic Summer/Winter time changeover. It has a large LCD screen and is compatible with up to 3kW immersion heaters. The Timeguard brand is renowned for its excellent quality and reliability. With lines ranging from lighting, through time switches, to RCD protection, being a popular choice with electricians, you know when you choose Timeguard you are getting a great product that offers great value for money. Timeguard’s new look Fused Spur Time switches with easy viewing display, optional 1 or 2 hour boost facility and automatic Summer/Winter time changeover. Clearly delivering the tried and trusted features you expect from the Supply Master range.