The Dragino LWL01 is a LoRaWAN Water Leak Sensor. It detects the water leak status and sends it to a LoRaWAN network.
LWL01 is powered by an easily replaceable CR2032 coin battery, in a case for good LoRaWAN coverage, it can transmit as many as 12,000 uplink packets (base on SF7, 14 dB). In poor LoRaWAN coverage, it can transmit ~1,300 uplink packets (base on SF10, 18.5 dB). The design goal for one battery is up to 2 years.