The Dragino LDDS20 is a LoRaWAN Ultrasonic liquid level sensor for Internet of Things solution

It uses non contact method to measure the height of liquid in a container without opening the container, and send the value via LoRaWAN network to IoT Server The LDDS20 sensor is installed directly below the container to detect the height of the liquid level

User doesn’t need to open a hole on the container to be tested

The non contact measurement makes the measurement safety, easier and possible for some strict situation

LDDS20 uses ultrasonic sensing technology for distance measurement

LDDS20 is of high accuracy to measure 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 LDDS20 allows 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 whilst minimizing current consumption

LDDS20 is powered by 8500mA Li-SOCI2 battery ; It is designed for long term use up to 10 years*

Each LDDS20 pre-loads with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect if there is network coverage, after power on

*Actually lifetime depends on network coverage and uplink interval and other factors Features: LoRaWAN 1

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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 Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865 AT Commands to change parameters Uplink on periodically Downlink to change configure IP66 Waterproof Enclosure 8500mAh Battery for long term use Applications: Smart liquid control solution Smart liquefied gas solution