Milesight EM500-UDL LoRaWAN Ultrasonic Distance/Level Sensor
LoRaWAN® Ultrasonic Distance/Level Sensor for non-contact measurement of liquids and solids. Measuring range 0.25–10 m, ±1% accuracy, IP67-rated, UV resistant, and self-powered with 10-year battery life. Suitable for flood monitoring, water tank levels, industrial liquid tanks, and outdoor distance sensing.
Description
Industrial Distance and Level Measurement — Precision Meets Accuracy
The Milesight EM500-UDL is a LoRaWAN® Ultrasonic Distance/Level Sensor engineered for accurate, non-contact measurement of liquids and solid objects in demanding industrial and outdoor environments. Using ultrasonic wave technology, it detects levels without touching the medium — making it ideal for corrosive chemicals, wastewater, flood water, and bulk solids.
Key Features
- Accurate Non-Contact Detection — Ultrasonic waves measure liquid or object distance with up to ±1% full-scale accuracy, even for corrosive or chemically aggressive media.
- Wide Measuring Range: 0.25 m to 10 m — Multiple probe options (W050, W100, C050, C100) covering short- and long-range applications including narrow-opening containers.
- IP67 Rated & UV Resistant — Fully sealed against dust and water ingress; UV-resistant housing withstands continuous outdoor exposure. Proven in ski resorts, manufacturing plants, river banks, and remote dam sites.
- 10-Year Battery Life — Powered by a 19,000 mAh ER34615 Li-SOCl₂ battery at a 10-minute reporting interval; no mains power or wiring required.
- LoRaWAN® Class A Wireless — OTAA/ABP, supports all major frequency plans (EU868, US915, AS923, AU915, etc.). Long-range transmission through walls and across open terrain.
- NFC & USB-C Configuration — Configure via the Milesight ToolBox mobile app over NFC, or via USB-C on a PC. No specialist tools needed.
- Advanced Data Features — On-device storage of 1,000 entries, data retransmission, threshold alarms, change alarms, and Milesight D2D controller support.
- Flexible Mounting — Pole, wall, or DIN Rail mounting options; compatible with the optional DIN Rail Kit.
Technical Specifications
- Protocol: LoRaWAN® Class A, OTAA / ABP
- Measuring Range: W050: 0.3–5 m | W100: 0.5–10 m | C050/C100: 0.25–5 m / 0.25–10 m
- Accuracy: W050/W100: ±1% FS | C050/C100: ±(1 + 0.3%×S) cm
- Resolution: 1 mm
- Battery: 19,000 mAh ER34615 Li-SOCl₂ (~10 years at 10-min interval)
- Operating Temperature: W050/W100: −30°C to +65°C | C050/C100: −15°C to +60°C
- Ingress Protection: IP67
- Certifications: CE, FCC, ISED, TELEC, LoRaWAN® Certified
- Dimensions: 156.1 × 71 × 69.5 mm
Typical Applications
- River and reservoir flood monitoring & early warning systems
- Water tank and rainwater harvesting level monitoring
- Industrial liquid tank level sensing (chemicals, petroleum, fertiliser)
- Wastewater and sewage treatment plant monitoring
- Dam and retention pond water level telemetry
- Agricultural irrigation channel monitoring
- Outdoor distance and object detection
