Ultrasonic Distance Sensor Measuring Distance 30–500 cm EM400-UDL 868 W050 Pro – Milesight

The EM400-UDL 868 W050 Pro is designed for professional distance and level measurement in demanding environments. Using ultrasonic sensing, it measures without direct contact with the target medium, making it well suited for applications where moisture, dirt, buildup, or direct contact can affect other sensing methods.

This Pro version with the W050 measuring range is built for applications from 30 to 500 cm, making it a strong fit for tanks, shafts, storage systems, and water level monitoring points within a mid-range measuring window. LoRaWAN connectivity enables low-power, long-range wireless communication and makes the sensor suitable for distributed monitoring points across private and public LoRaWAN networks.

In addition to distance measurement, the device also provides temperature monitoring and tilt status detection. This gives users more than a single measurement value and helps add operating context around the installation point. That is especially useful in projects where position changes or temperature conditions are relevant alongside the main sensing task.

Typical use cases include tank level monitoring, sewer and drainage level measurement, flood monitoring, storage and barn fill level control, and distance measurement in industrial and municipal environments. It is also well suited for agricultural applications and infrastructure projects that require durable long-term remote monitoring.

With its IP67-rated enclosure, the EM400-UDL 868 W050 Pro is built for outdoor use and harsh conditions. A conformal coating on the PCBA adds extra protection against moisture, dust, and contaminants. Combined with a battery life of more than 10 years under LoRaWAN operating conditions, it is a strong choice for low-maintenance professional sensing projects.