The Dragino LWL02 is a long-life LoRaWAN water leak sensor designed for multi-year, maintenance-free leak monitoring. Powered by two common AAA batteries, it detects water between its metal probes, uplinks each leak event, and keeps count of events and total leak duration for building automation and facility management.

Key specifications

• Water leak detection between dual metal probes; uplink on event plus daily periodic reports
• 2 × AAA batteries delivering 16,000–70,000 uplinks for 2–10 years of battery life
• LoRaWAN v1.0.3 Class A, SX1262 LoRa core
• Counts leak events and calculates last leak duration; event uplink can be set to count-only mode
• Remote configuration via LoRaWAN downlink; AT commands for parameter changes
• Compact 69.2 × 29.2 × 15 mm enclosure; preloaded OTAA keys

This US915 variant integrates with any standard LoRaWAN network server for wireless leak alarming.