Features:This is a clever designed practical water leak alarm which is simple to install and easy to use.Low power consumption, reverse input protection design without worry about burning out.Sensitive sensor is plated with gold and suitable for mineral water, drinking water, raindrops and distilled water, etc.120dB loud alarm sound keep alarm to notice you until the water is dry or sensor is turned off.Widely used for fish tank, water tank, kitchen, warehouse, garage, solar water heater and so forth.Specifications:Alarm Sound:120dBSensor Size: 30*12mm/1.18*0.47"Alarm Case Size: 98*46*22mm/3.85*1.81*0.86"Wire Length: Approx. 1meter/39.37"Battery: 9V (Not included)Note:1, Dry water on the sensor after alarm, otherwise it will continuously alarm.2, The alarm case is not waterproof, so please keep it away from water.Package Includes:1 x Water Leak Alarm (Battery is NOT included)