Water damage is one of the most common and expensive problems affecting families. Even a small amount of water can cause serious problem to your family. When detecting even a small leak, the water leakage alarm sounds very loud and lets you know that you have a problem that requires immediate attention before it becomes an expensive problem. Features: Made of durable ABS plastics, sturdy and durable, environmental protection. Easy to operate. No buttons, no programming, just need to put the floating ball where you want to check the leaks. Automatic operation and high sensitivity. Once its floating ball touches the water, it will immediately send out a 119dB alarm. Waterproof protection. Durable to withstand various moistured environments. It can be used for monitoring water leakage of fish tank, water tank, water purifier, drinking water machine, air conditioning and drainage, solar energy. Specifications: Battery Model: 6F22 (Not Included) Material: ABS Sound Type: 119 alarm sound Volume Sound: about 120 dB Suitable Place: outdoor or need loud voice reminder places Package Weight: 62g/2.2oz Package List: 1 * Detector (Battery Not Included) 1 * User Manual Package List 1Made of durable ABS Plastics, sturdy and durable, environmental protection. 2Easy to operate. No buttons, no programming, just need to put the floating ball where you want to check the leaks. 3Automatic operation and high sensitivity. Once its floating ball touches the water, it will immediately send out a 119dB alarm. 4Waterproof protection. Durable to withstand various moistured environments. 5It can be used for monitoring water leakage of fish tank, water tank, water purifier, drinking water machine, air conditioning and drainage, solar energy.