The Milesight EM500-UDL Ultrasonic Level Sensor (W050) measures liquid level or distance without contact, using ultrasonic ranging for tanks, rivers, and flood monitoring. With a 0.3–5 m range, IP67 enclosure, and 10-year battery, it is built for long-term outdoor level sensing over LoRaWAN.

Key specifications

• Ultrasonic measurement range 0.3–5 m (W050), ±1% FS accuracy, 1 mm resolution
• 19000 mAh Li-SOCl2 battery for up to 10 years at 10-minute intervals
• IP67 enclosure; -30 to 65°C operating range; pole, wall, or DIN-rail mounting
• LoRaWAN Class A (OTAA/ABP), LoRaWAN Certified, plus Milesight D2D
• NFC mobile-app configuration; USB Type-C PC configuration and console
• 1,000-entry data storage with retransmission; threshold and change alarms

This US915 variant works with standard LoRaWAN gateways and the Milesight IoT Cloud or your own platform.