The NB-IoT and LoRaWAN wireless water leak sensor consists of two parts: a data collection unit and a water leak sensor. The water leak sensor utilizes the principle of liquid conductivity and employs a 4-probe design to detect leaks. Under normal conditions, the two probes are insulated by air, but when submerged, the probes conduct and trigger an alarm signal. It offers high sensitivity for accurate leak detection, and the cable length can be customized according to customer requirements. The data collection unit is equipped with a built-in LoRa module and a high-capacity battery, paired with an external omnidirectional antenna to enhance the transmission and reception of LoRa wireless signals, extending the signal range. It sends alarm signals via NB-IoT and LoRaWAN networks to the cloud platform, which then notifies users through WeChat or SMS. This product uses wide area network communication technology and can operate independently without a gateway, making it suitable for libraries, server rooms, warehouses, equipment rooms, and any other locations requiring waterproof monitoring.

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