The Milesight EM500-UDL W050 is an industrial ultrasonic level sensor for tanks, pits, silos, channels and flood points. It measures from above without contact, over 0.3 to 5 m, and reports over LoRaWAN.
Why pick it
- Accuracy of ±1% of full scale, with 1 mm resolution.
- One 19000 mAh lithium cell: Milesight quotes up to 10 years at a 10-minute interval.
- IP67 housing with pole, wall and DIN-rail mounting options for outdoor and plant-room sites.
Thresholds, change alarms and local data storage with retransmission are built in. Set up from a phone over NFC.
Works with any standard LoRaWAN gateway and network server, such as the Milesight UG65 indoors or the UG67 outdoors, with alerts and dashboards on IoT Factory.
The EM500-UDL comes in C050 (0.25–5 m), C100 (0.25–8 m), W050 (0.3–5 m) and W100 (0.5–10 m). The W versions hold ±1% of full scale and work from -30 °C.














