LWL02: LoRaWAN Water Leak Sensor

The Dragino LWL02 is a LoRaWAN Water Leak Sensor. When there is water between the two metal probes, the LWL02 indicates a water leak event and uplinks to an IoT server via the LoRaWAN network.

The LWL02 is powered by 2 x AAA batteries and targeted for long time use- these two batteries can provide about 16,000 ~ 70,000 uplink packets, which results in 2 ~ 10 years battery life. After the batteries run out, users can easily open the enclosure and replace with 2 common AAA batteries.

The LWL02 will periodically send data every day as well as for each water leak event. It also counts the water leak times and calculates the last water leak duration. Users can also disable the uplink for each water leak event, instead the device can count each event and uplink periodically.

Each LWL02 is pre-loaded with a set of unique keys for LoRaWAN registration. Once these keys are registered to a local LoRaWAN server,  the device will auto connect after it has been powered on.