Description
The Dragino DDS20-LB is a LoRaWAN liquid level sensor designed for IoT solutions. It measures the height of a liquid in a container without needing to open the container. The sensor is attached directly below the container, making non-contact measurements both safely and easily.
The DDS20-LB uses ultrasonic sensing technology to provide reliable and accurate distance measurements of the liquid level.
The DDS20-LB uses LoRaWAN technology to send the liquid level information, allowing for ultra-long-range spread spectrum communication and high interference immunity while minimizing current consumption.
The DDS20-LB supports BLE configuration and wireless OTA update for ease of use, and it is powered by an 8500 mAh Li-SOCl₂ battery designed for long-term use.
Each DDS20-LB comes preloaded with a set of unique keys for LoRaWAN registrations, and registering these keys to a local LoRaWAN server will cause it to automatically connect after powering on.



