Milesight IoT LoRaWAN Ultrasonic Distance/Level Sensor 5m EM500 (EM500-UDL-868M-W050)

The Milesight IoT EM500-UDL-868M-W050 is a professional LoRaWAN ultrasonic distance and level sensor designed for remote monitoring of liquid levels, distances, and object detection. With a measurement range of 0.3 to 5 meters and high accuracy of ±1% or ±1 cm, this sensor is ideal for smart agriculture, water management, and industrial automation. Its robust IP67-rated housing ensures reliable operation in harsh environments, while the long-lasting 19000 mAh battery provides up to 10 years of maintenance-free operation.

Advantages

This sensor offers easy deployment with no wiring required, thanks to LoRaWAN wireless communication. The built-in NFC interface simplifies configuration via a smartphone app, and the device supports over-the-air firmware updates. Its low power consumption and long battery life reduce total cost of ownership, making it a sustainable choice for large-scale IoT projects.

Suitable for

• Liquid level monitoring in tanks, reservoirs, and rivers
• Distance measurement in parking lots, warehouses, and construction sites
• Object detection for smart waste management and flood warning systems
• Agricultural irrigation control and water resource management

Key specifications

• Sensor Type: Ultrasonic
• Measurement Range: 0.3 m to 5 m
• Accuracy: ±1% or ±1 cm (whichever is greater)
• Resolution: 1 cm
• Detection Angle: 15°
• LoRaWAN Frequency: EU868 (863-870 MHz)
• LoRaWAN Class: Class A
• Transmission Power: 16 dBm (EU868)
• Antenna Type: Internal
• Battery Type: 19000 mAh Li-SOCl2 (ER34615)
• Battery Life: Up to 10 years (data interval dependent)
• Operating Temperature: -30°C to +70°C
• Ingress Protection: IP67
• Mounting: Wall or Pole Mounting
• Data Transmission Interval: 10 minutes to 24 hours (configurable)
• Communication Protocol: LoRaWAN v1.0.2/v1.0.3
• Configuration Interface: NFC, LoRaWAN Downlink
• Housing Material: PC + ABS
• Certifications: CE, FCC, RoHS

Recommendations

For optimal performance, mount the sensor vertically above the target surface and ensure the detection area is free from obstructions. Use the Milesight IoT Toolbox app for easy setup and monitoring. This sensor is compatible with any standard LoRaWAN gateway and network server.