Drip and Leak Alarm: Simply place it in the bathroom, basement, under the sink or in the water heater to detect leaks before they cause costly water damage Loud Alarm: Motion sensor with 130dB ultra-loud alarm, loud enough to be heard even if the leaks are in the base One-click activation. As long as you need it, you can turn on the switch at any time to detect water leaks 130dB Loud Alarm. More than 130dB sound can travel up to 100 meters, time is money and life when floods come! You can repair floods or water leaks as quickly as possible to protect your belongings. 1.Install the battery. Insert a new 9V battery into the "water detector". Just like a smoke detector, it provides up to 2 years of protection. If you are worried about the battery power, you can press the test button of the water detector at any time to check the power supply. 2. Key switch. It also has an on/off switch. You can turn it off when water detection is done. You don't need to dry the sensor or remove the batteries to turn off the alarm. Very easy to use. 3. Reacts to the alarm. When the metal contact of the water detector touches the water, a 130 dB alarm will sound to inform you in time of the leak. Color: White Size: 86*55*26mm Quantity sold: 1 piece becomeveryrich