Seeed Studio LWL02 LoRaWAN Water Leak Sensor EU868MHz is a compact and reliable IoT sensor designed for water leak detection in smart homes, smart buildings, and industrial monitoring. When water is detected between its metal probes, the device immediately reports a water leak event via the LoRaWAN EU868 network, ensuring timely alerts and protection against damage.

The LWL02 sensor is powered by 2 x AAA batteries, supporting long-term use with up to 16,00070,000 uplink packets, equivalent to 210 years of battery life. Batteries can be easily replaced, and after replacement, pressing the RESET button re-activates its low-power management mode.

It transmits data periodically and during each leak event, while also counting leak occurrences and calculating duration. Users can configure the device to disable event-based uplinks, instead sending periodic summaries. Each unit comes preloaded with unique LoRaWAN OTAA keys for secure registration and automatic connection to the network.

Features

• Low Power Consumption: Operates up to 2 years with 2 x AAA LR03 batteries.
• Long-Range Transmission: Data can be transmitted within 35 km via LoRaWAN EU868.
• Multi-Platform Support: Compatible with Helium and TTN networks for quick deployment.
• Alarm Function: Immediate alerts for water leak events.
• Flexible Configuration: Supports AT commands and LoRaWAN downlink for remote parameter adjustments.

Applications

• Boat Bilge Monitoring: Early detection of water ingress in marine vessels.
• Smart Buildings: Protect server rooms, basements, and utility closets from water damage.
• Smart Homes: Leak detection under sinks, near washing machines, or water heaters.

Note: Replace batteries when voltage drops to 2.8V and press the RESET button after replacement to ensure proper low-power operation.

Seeed Studio LWL02 LoRaWAN Water Leak Sensor EU868MHz is a durable, energy-efficient, and easy-to-deploy solution for IoT-enabled water leak monitoring, ensuring reliable protection in residential, commercial, and industrial environments.

Dimension and Overview

Parts List

1 x LoRaWAN Water Leak Sensor EU868MHz

Documents

LWL02 DatasheetLWL02 User Manual

Certification