Product use: Flood damage is one of the most common and costly problems affecting homes. Even small amounts of water can cause serious problems for your family. Even when a small leak is detected, the water leak alarm goes off loudly, letting you know you have a problem that needs to be dealt with immediately before it becomes a costly problem. Automatic Operation and High Sensitivity: You just need to place it where you want to check for leaks, it will automatically help you detect leaks, once the three contactors touch water, it will remind you immediately. Easy to operate. No buttons, no programming, you can use it when you buy it home. High-quality material: This leak alarm is made of high-quality ABS plastic, durable and environmentally friendly. low consumption. Help you detect water leakage in your home, and also contribute to energy conservation and environmental protection. You won't regret it after buying it. 9V Alkaline Batteries: This product needs 9V Alkaline batteries, but we dont have batteries when we ship, you need to buy them from foreign friends, this battery can usually be used for 1 year, and you need to replace the battery after 1 year. Make sure the product runs efficiently Areas of application: This product is widely used in any potential flood point - near bathrooms, basements, kitchens, boats, garages, etc. Only when there is leakage in the place where you live or work, you can choose our product with confidence, without any operation, just install the battery and place the product at the location to be tested. Package Quantity: 1 piece