Dragino LDDS20 LoRaWAN® Ultrasonic Liquid Level Sensor (EU868)


:In stock

  • LoRaWAN 1.0.3 Class A
  • Ultra low power consumption
  • Liquid Level Measurement by Ultrasonic technology
  • Measure through container, No need to contact Liquid.
  • Valid level range 20mm – 2000mm
  • Accuracy: ±(5mm+S*0.5%) (S: Measure Value)
  • Cable Length : 25cm
  • AT Commands to change parameters
  • Uplink on periodically
  • Downlink to change configure
  • IP66 Waterproof Enclosure
  • 8500mAh Battery for long term use




Product Description

The Dragino LDDS20 is a LoRaWAN Ultrasonic Liquid Level Sensor designed for IoT solutions. It employs a non-contact method to accurately measure the height of liquid in a container, including toxic substances, strong acids, strong alkalis, and various pure liquids in high-temperature and high-pressure airtight containers. The sensor utilizes ultrasonic sensing technology for precise distance measurement and is powered by an 8500mA Li-SOCI2 battery, designed for long-term use up to 10 years.


  • LoRaWAN 1.0.3 Class A: Ensures efficient and reliable connectivity.
  • Ultra-Low Power Consumption: Suitable for long-term deployments.
  • Non-Contact Liquid Level Measurement: Measures liquid levels without direct contact.
  • Valid Level Range: 20mm to 2000mm, catering to a wide range of applications.
  • Accuracy: ±(5mm+S*0.5%) (S: Measure Value).
  • Cable Length: 25cm.
  • Frequency Bands: Supports multiple bands including CN470, EU433, KR920, US915, EU868, AS923, AU915, IN865.
  • AT Commands: For easy parameter adjustments.
  • IP66 Waterproof Enclosure: Suitable for harsh environments.
  • Battery: 8500mAh for extended use.


  • Smart Liquid Control Solutions: Efficient management of liquid resources.
  • Smart Liquefied Gas Solutions: Ideal for monitoring and managing gas levels.

The LDDS20 is a robust and versatile sensor, perfect for IoT applications requiring accurate liquid level monitoring in challenging environments​.

Product Downloads


Shipping Policy

We provide worldwide shipping using only tracked shipping services. Currently all our international shipments are performed by TNT Express and FedEx. Local shipments to Greece are performed either directly from us or using local shipping couriers (i.e. ELTA Courier).

We ship products within 1-3 days after the order is placed. You will be notified by email when your order is dispatched and you will receive the relevant shipment tracking number which you can use to track your shipment.

Shipment Tracking

You can use the following links to track your order using the provided tracking number in the case of international orders.
  • Orders shipped with TNT Express: TNT Tracking
  • Orders shipped with FedEx: FedEX Tracking
  • General Return Policy

    We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.

    To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.

    To start a return, you can contact us at info@invibit.com. If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.

    For any further information, help and support regarding the shipping and/or return process you can contact us at:

  • Email: info@invibit.com
  • Telephone: +30 210 421 2380