Reliable performance compatibility When the water sensor detects water leakage or pre-set limit value, the water detector will send a 60dB alarm sound, the alarm will ring in 60 seconds, and the alarm message will be sent in 2 to 10 seconds on the smart phone (depending on the network speed). The audible and visual alarm to prevent possible water damage can trigger a 60dB loud alarm and a red flashing alarm on the site even if there is no WiFi. Even if there is water leakage in the basement, enough sound can be heard. Easy to install, just connect the Wi-Fi water leakage detector to any required position with the peeled lead adhesive or the provided screws. There is no need for messy wires. Additional equipment or hubs are widely used. It is very suitable for compatibility with families, warehouses, basements, continuous sink monitoring, dishwashers, electrical appliances, refrigerators, washing machines, pump sewers, water heaters, jacuzzi, water pipes and filtration equipment. Swimming pools, bathtubs, aquariums and sensors warn of water levels. Installation and use: No gateway or complex cabling is required, only a few simple steps can be taken to connect to the home WiFi (only compatible with 2.4GHz). Whether you are in the office or on the road, the graffiti/smart life application allows you to check your status at any time. You can also share with others, and more people can receive notifications and track wireless sensor activity. SpecificationsBattery: AAA battery (not included)Standby time: 3 yearsOperating temperature: - 10-55Operating humidity: 10% to 90% relative humidity (non condensing)Size: 70 * 25 * 20mmLine length: 1MColor: whitePackage includes: 1 * alarmNote: 1. Please allow a little error due to manual measurement. Please make sure you don't mind before bidding 2. The color may vary depending on the display. Please understand Note: Hello, please pay attention to your shipping address when purchasing products. If your receiving information (such as name, street, house number, doorbell/email without name) is incorrect, the order will not be delivered correctly.)