Ultrasonic Liquid Level Sensor DDS20-LB – Dragino LoRaWAN EU868

The Dragino DDS20-LB is an ultrasonic liquid level sensor for LoRaWAN deployments that require reliable remote monitoring without direct contact with the liquid. The sensor is mounted underneath the container and measures the liquid level from outside the tank, so there is no need to open the container or insert the sensor into the medium.

That makes it a strong fit for real-world projects where installation simplicity, low maintenance, and safe measurement matter more than generic manufacturer claims. Typical use cases include water tanks, service reservoirs, IBC containers, process tanks, dosing containers, utility systems, and storage vessels in agriculture, industrial operations, and building infrastructure. It is especially useful where teams need to monitor remaining liquid volume, prevent empty tanks, plan refills more efficiently, or feed level data into an existing IoT platform.

A key commercial advantage is the non-contact measurement method. Because the sensor does not touch the liquid, it can simplify installation and reduce concerns around contamination, access, or intrusive changes to the tank. For integrators, facility operators, and OEM developers, this makes the DDS20-LB a practical option for adding LoRaWAN-based level monitoring to distributed sites.

Its valid level range from 20 mm to 2000 mm covers many common container formats used in field deployments. The IP66 enclosure supports use in tougher environments, while Bluetooth 5.1 allows easier local setup. Remote configuration via LoRaWAN and wireless OTA firmware updates also make the sensor easier to deploy and maintain across larger installations.

With its built-in 8500 mAh Li/SOCl2 battery, the DDS20-LB is designed for long-life standalone deployments with minimal maintenance. For EU868 LoRaWAN projects that need dependable tank level monitoring without frequent service visits, it is a practical choice.