DDS20-LS LoRaWAN Ultrasonic liquid level sensor

The Dragino DDS20-LS is a LoRaWAN Ultrasonic liquid level sensor for Internet of Things solution. It uses none-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 DDS20-LS 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 none-contact measurement makes the measurement safety, easier and possible for some strict situation.  

DDS20-LS uses ultrasonic sensing technology for distance measurement. DDS20-LS 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 DDS20-LS 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.

DDS20-LS supports BLE configure and wireless OTA update which make user easy to use.

DDS20-LS is powered by 8500mAh Li-SOCI2 battery, it is designed for long term use up to 5 years.

Each DDS20-LS 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 power on.

Features: 

• 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 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
• Solar panel + 3000mAh Li-ion battery  

Applications: 

• Smart liquid control solution
• Smart liquefied gas solution

Specifications:

Common DC Characteristics:

• Supply Voltage: built in 8500mAh Li-SOCI2 battery , 2.5v ~ 3.6v
• Operating Temperature: -40 ~ 85°C

LoRa Spec:

• Frequency Range,  Band 1 (HF): 862 ~ 1020 Mhz,Band 2 (LF): 410 ~ 528 Mhz
• Max +22 dBm constant RF output vs.
• RX sensitivity: down to -139 dBm.
• Excellent blocking immunity

Battery:

• Li/SOCI2 un-chargeable battery
• Capacity: 8500mAh
• Self-Discharge: <1% / Year @ 25°C
• Max continuously current: 130mA
• Max boost current: 2A, 1 second

Power Consumption:

• Sleep Mode: 5uA @ 3.3v
• LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm

Documents:

• DataSheet, Document Base
  
• User Manual -- Online Latest
• Shared Folder for all Dragino Products

Package Includes:

• 1 x DDS20-LS LoRaWAN Liquid Level Sensor x 1

Note:

Ultrasonic coupling paste and Eproxy AB glue are subjected in most shipping way. So the default package doesn’t include it and user needs to purchase locally.

Dimensions and Weight:

• Device Size: 14.5 x 8 x 5 cm
• Device Weight: 190 g

Order Info:

Model: DDS20-LS-XX:

XX: the default frequency band

• EU433: Default frequency band EU433
• CN470: Default frequency band CN470
• EU868: Default frequency band EU868
• IN865:  Default frequency band IN865
• KR920: Default frequency band KR920
• AS923: Default frequency band AS923
• AU915: Default frequency band AU915
• US915: Default frequency band US915

Shipping Notice
- We only support express shipping because of included battery
- Prices are exclusive of local taxes and import duties

• Availability: 23 In Stock
• Model: DDS20-LS