Water detector, consisting of a detector unit and a sensor connected to it. It is used to monitor water leaking from washing machines, dishwashers or water pipes, for example, and to monitor the fill level of a bathtub, for example. The device reports with a 98 dB(A) loud warning tone or with a melody. Sensor (with 1m cable) for laying or for attaching with a suction cup. Operated by a 9V block battery (not included). A necessary battery change is reported by an acoustic signal. Dimensions: 56 x 104 x 24mm.