The Masterplug RCD Adaptor is a plug-in safety device designed to protect users from electric shock when operating power tools and electrical appliances. This compact unit simply plugs into a standard UK mains socket, creating an additional layer of protection by continuously monitoring the electrical supply for earth leakage faults. The RCD adaptor responds within 40 milliseconds if it detects an earth current fault, cutting power fast enough to prevent potentially fatal electric shock. This rapid response time makes it an essential safety device when using portable electrical equipment, particularly in environments where tools may be exposed to moisture or where cable damage could occur. Ideal for use with lawnmowers, hedge trimmers, power drills and other 240V appliances, the Masterplug RCD Safety Adaptor offers protection in situations where electrical appliances may develop loose wiring, damaged power cords or water ingress. The device is particularly valuable for contractors and