DDS20-NB NB-IoT Ultrasonic liquid level sensor
DDS20-NB NB-IoT Ultrasonic liquid level sensor
The Dragino DDS20-NB is an NB-IoT 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 IoT platform via the NB-IoT network.
The DDS20-NB 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-NB uses ultrasonic sensing technology for distance measurement. DDS20-NB is of high accuracy to measure various liquids 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 users easy to use.
DDS20-NB is powered by an 8500mAh Li-SOCI2 battery, it is designed for long-term use for up to several years.
DDS20-NB has optional built-in SIM card and default IoT server connection version. Which makes it work with a 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 the 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
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: 350mA@3.3v
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