DDS20-NB -- NB-IoT Ultrasonic liquid level sensor

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DDS20-NB -- NB-IoT Ultrasonic liquid level sensor

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The Dragino DDS20-NB is a NB-IoT 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 IoT platform via NB-IoT network.

The DDS20-NB 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-NB uses ultrasonic sensing technology for distance measurement. DDS20-NB 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.

DDS20-NB supports different uplink methods including MQTT, MQTTs, UDP & TCP for different application requirement, and support uplinks to various IoT Servers.

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

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

DDS20-NB has optional built-in SIM card and default IoT server connection version. Which makes it works with simple configuration.

Features:

NB-IoT Bands: B1/B2/B3/B4/B5/B8/B12/B13/B17/B18/B19/B20/B25/B28/B66/B70/B85 @H-FDD
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)
Multiply Sampling and one uplink
Support Bluetooth v5.1 remote configure and update firmware
Uplink on periodically
Downlink to change configure
IP66 Waterproof Enclosure
8500mAh Battery for long term use
Nano SIM card slot for NB-IoT SIM

Applications:

Smart liquid control solution
Smart liquefied gas solution

Specifications:

Common DC Characteristics:

Supply Voltage: 2.5v ~ 3.6v
Operating Temperature: -40 ~ 85°C

LoRa Spec:

NB-IoT Module: BC660K-GL

Support Bands:

B1 @H-FDD: 2100MHz
B2 @H-FDD: 1900MHz
B3 @H-FDD: 1800MHz
B4 @H-FDD: 2100MHz
B5 @H-FDD: 860MHz
B8 @H-FDD: 900MHz
B12 @H-FDD: 720MHz
B13 @H-FDD: 740MHz
B17 @H-FDD: 730MHz
B18 @H-FDD: 870MHz
B19 @H-FDD: 870MHz
B20 @H-FDD: 790MHz
B25 @H-FDD: 1900MHz
B28 @H-FDD: 750MHz
B66 @H-FDD: 2000MHz
B70 @H-FDD: 2000MHz
B85 @H-FDD: 700MHz

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:

STOP Mode: 10uA @ 3.3v
Max transmit power: This email address is being protected from spambots. You need JavaScript enabled to view it.

Package Includes:

DDS20-NB NB-IoT Ultrasonic liquid level sensor x 1

External antenna 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

Part Number: DDS20-NB-XX

XX:

GE: General version ( Exclude SIM card)
1D: with 1NCE* 10 years 500MB SIM card and Pre-configure to DataCake server

1NCE SIM Card NB-IoT network coverage: Austria, Belgium, Bulgaria, Croatia, Czech Republic, Denmark, Finland, Germany, Great Britain, Greece, Hungary, Ireland, Italy, Latvia, Malta, Netherlands, Norway, Puerto Rico, Russia, Slovak , Republic, Slovenia, Spain, Sweden, Switzerland, Taiwan, USA, US Virgin Islands

Last modified on 27 September 2023