Milesight EM500-SWL-868M – LoRaWAN® Water Level Sensor with Stainless Steel Probe (0–3 m Range)

The Milesight EM500-SWL-868M is a robust and reliable liquid level sensor that utilizes vented gauge pressure to measure water levels with high accuracy. Its stainless steel 304 probe provides corrosion resistance, making it suitable for a wide range of indoor and outdoor use cases, including water tanks, wastewater systems, and river monitoring.

With LoRaWAN® wireless communication, the EM500-SWL transmits data over long distances (up to 10 km line of sight) while maintaining ultra-low power consumption. A high-capacity 19000 mAh battery powers the device for up to 10 years of maintenance-free operation at 10-minute intervals.

The transceiver is housed in an IP67-rated enclosure, while the sensor probe is IP68-rated, ensuring excellent environmental protection even in submerged or exposed conditions. Users can configure and manage the device via NFC using a mobile app, or through USB Type-C with PC software.

Additional features include a data logger with 1000 records, threshold alarms, data retransmission, and data retrieval, offering full visibility and resilience for remote monitoring applications.

Ideal for:

• Water tank level monitoring

• River and reservoir level tracking

• Wastewater and oil tank supervision

• ISO tank and industrial fluid monitoring

Key Features:

• 0–3 m water level range (customizable up to 200 m)

• Stainless steel 304 probe with corrosion resistance

• 0.01 m resolution, ±0.5% FS accuracy

• Long-term stability ≤ ±0.3% FS/year

• Up to 10 years of battery life (19000 mAh Li-SOCl₂)

• LoRaWAN® connectivity (Class A, OTAA/ABP)

• IP67 (transceiver) and IP68 (sensor) protection

• 1000-record onboard data storage with CSV/PDF export

• Configurable via NFC or USB-C

• CE, FCC, ICASA, ISED, Telec, and RoHS certified