[Remotely Monitoring Leaking] Please connect the water sensor alarms to your phone with WiFi first. No matter you are in another city, state or country, your smartphone can receive the warning alert from water leak detector anywhere. (Please Note: 2.4GHz WiFi Only, and distance between the water sensor and the router should be within 15 meters) [APP & SMS & Email Notification, 80dB Alarm] The water leak sensor is equipped with a water detector probe; when the probe detects a , it sends out an alarm notification through the App. If your WiFi is temporarily unavailable, the 80dB water detector alarm is designed to you can hear the alarm clearly. [Works for & Home] No gateways or complicated required. Only install them and connect to your phone! You can control your water sensor alarm leak detector via and Home Assistant which is very convenient. You can also connect with multiple sensors simultaneously. [IP67 Waterproof] The water alarm leak detector PROBE is waterproof and allows for a long time in high-humidity areas. The battery type is AAA Battery 1.5V * 2 (NOT INCLUDED) [Widely Applications]The water leak detectors for home can be used in sump pumps, toilets, kitchen, laundry, sinks, fish tanks, and any other location subject to water leaks and flooding and it can also be used to monitor water levels in bathtubs, pools, basement, etc. Colour:White Material:plastic Package Contents: 3 x WiFi Water Ieak Detector Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.