DDS20-LB LoRaWAN Liquid Level Sensor

The Dragino DDS20-LB is a LoRaWAN Ultrasonic liquid level sensor for the Internet of Things solution. It uses a none-contact method to measure the height of liquid in a container without opening the container and send the value via the LoRaWAN network to IoT Server.

The DDS20-LB sensor is installed directly below the container to detect the height of the liquid level. The user doesn’t need to open a hole in the container to be tested. The non-contact measurement makes the measurement safe, easier, and possible for some strict situations.

DDS20-LB uses ultrasonic sensing technology for distance measurement. DDS20-LB is of high accuracy in measuring various liquid such as toxic substances, strong acids, strong alkalis, and various pure liquids in high-temperature and high-pressure airtight containers.

The LoRa wireless technology used in DDS20-LB allows the device to send data and reach extremely long ranges at low data rates. It provides ultra-long-range spread spectrum communication and high interference immunity while minimizing current consumption.

DDS20-LB supports BLE configuration and wireless OTA update, which makes users easy to use.

An 8500mAh Li-SOCI2 battery powers DDS20-LB; it is designed for long-term use up to 5 years.

Each DDS20-LB is pre-load with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server, and it will auto-connect after powering on.

• LoRaWAN 1.0.3 Class A
• Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
• Ultra-low power consumption
• Liquid Level Measurement by Ultrasonic Technology
• Measure through the container, No need to contact Liquid
• Valid level range 20mm – 2000mm
• Accuracy: ±(5mm+S*0.5%) (S: Measure Value)
• Cable Length: 25cm
• Support Bluetooth v5.1 and LoRaWAN remote configure
• Support wireless OTA update firmware
• AT Commands to change parameters
• Downlink to change configure
• IP66 Waterproof Enclosure
• 8500mAh Battery for long-term use

Applications:

• Smart liquid control solution
• Smart liquefied gas solution