Greisinger 601910 Water leak detector incl. external sensor mains-powered

The water leakage detector generates an alarm at a water level of only 0.5 mm and then uses a magnetic valve to turn off the water and electricity to the connected appliance. You can use a junction box to connect several sensors to the device. The device can be easily installed without tools and is completely maintenance-free. Suitable for all common washing machine connections.

Price: £ 204.99 from Conrad Electronic