Milesight EM500-UDL is a high-performance LoRaWAN® ultrasonic sensor designed for accurate, non-contact distance and level measurement in harsh environments. It is widely used for applications such as water tank monitoring, flood detection, grain storage, and industrial level measurement.
Using ultrasonic wave technology, the EM500-UDL measures the distance to a target without physical contact, making it suitable for corrosive liquids and difficult-to-access environments. It provides reliable and precise readings, typically with up to ±1% accuracy depending on the model.
Built for long-term deployment, the device supports LoRaWAN® long-range communication, enabling wireless data transmission to cloud platforms for remote monitoring and analysis. It also supports local data storage and retransmission, ensuring no data is lost during temporary network outages.
Key Features
- Non-contact ultrasonic distance and level measurement
- Accurate monitoring for liquids and solid materials
- LoRaWAN® long-range wireless communication
- IP67-rated rugged industrial design
- Up to 10 years battery life
- Data storage and retransmission support
- Ideal for tanks, rivers, flood, and industrial monitoring





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