Water Level Sensor 0–5 m LoRaWAN – Milesight EM500-SWL 868 (Probe L005-4846W)

The Milesight EM500-SWL 868 (Probe L005-4846W) is a professional submersible water level sensor designed for precise measurement up to 5 meters. The stainless steel probe is immersed directly in the liquid, ensuring stable readings regardless of foam, wind or rainfall.

Based on a vented gauge pressure principle, the sensor provides accurate long-term level monitoring with ±0.5% FS accuracy and 0.01 m resolution. It is engineered for infrastructure, industrial automation and environmental monitoring applications requiring reliable continuous data.

Integrated LoRaWAN® connectivity (EU868) enables secure long-range wireless transmission with minimal power consumption. The device is ideal for remote deployments such as groundwater wells, retention basins, irrigation systems and industrial tanks.

Powered by a 19,000 mAh Li-SOCL2 battery, the unit can operate up to 10 years at a 10-minute reporting interval (EU868 conditions).

Configuration is available via NFC mobile app or USB Type-C PC connection. With IP67 protection for the transceiver and IP68 for the probe, the EM500-SWL is built for harsh outdoor environments.

Typical applications:

Groundwater monitoring

Tank and cistern level measurement

Flood and river level monitoring

Stormwater systems

Agricultural irrigation control

Industrial liquid level monitoring

This specific model is configured for a 0–5 m measuring range.