Ultrasonic Distance Sensor Measuring Distance 25–500 cm EM400-UDL 868 – Milesight

The EM400-UDL 868 in the C050 version is designed for accurate non-contact distance measurement up to 500 cm. Using ultrasonic sensing, the device measures without direct contact with the target medium, making it well suited for applications where dirt, moisture, or material buildup could affect other measurement methods. This makes it a practical choice for level monitoring, distance measurement, and water level applications in demanding environments.

As a LoRaWAN sensor, the EM400-UDL 868 is built for long-range, low-power wireless deployments. It can be integrated into private or public LoRaWAN networks and is suitable for distributed monitoring points across industrial facilities, municipal infrastructure, and remote utility assets. Its long battery life supports low-maintenance installations where frequent service visits are not desirable.

In addition to distance measurement, the sensor also provides temperature monitoring and tilt status detection. This adds useful context in real deployments, especially where equipment position and environmental changes matter alongside the primary measurement value.

Typical use cases include tank level monitoring, sewer and drainage level monitoring, flood monitoring, barn and storage fill level control, and boiler expansion monitoring. It is also suitable for industrial process environments and infrastructure projects where stable, contact-free measurement is needed over time.

With its IP67-rated enclosure, the EM400-UDL 868 is made for outdoor and harsh-environment use. Combined with NFC configuration and a battery life of more than 10 years under LoRaWAN operating conditions, it is a strong fit for professional long-term IoT sensing projects.