Review on 💧 SECRUI WD121 Water Sensor - 24 Hour Water Leak Detector with 120dB Alarm for Home, Basement, and Kitchen by Hunter Siemon

The alarm works. There is no battery warning, such as B. A flashing light to alert you that the battery needs to be replaced. If the battery is too low, the alarm simply does not work. To be on the safe side, you can check this from time to time. There is also no information that the small transmitter contains a coin-sized battery. These types of systems must be failsafe and SHOULD alert the user to a low battery so it can be replaced before a flood occurs. They are designed to work in a similar way to smoke detectors, which emit a powerful beep when the battery is low.