The Dragino MDS120-NB is a  NB-IoT Microwave Radar distance Sensor for Internet of Things solution. It uses use Microwave Radar to detect the distance between sensor and different objects. Different from ultrosonic or Lidar measurement. Microwave Radar is more reliable for condensation / dusty environment. It can sense correct distance even there is water or think dust on top of the sensor.

The MDS120-NB can be applied to scenarios such as horizontal distance measurement, parking management system, object proximity and presence detection, intelligent trash can management system, robot obstacle avoidance, automatic control, sewer, etc.

MDS120-NB supports different uplink methods including MQTT, MQTTs, UDP & TCP for different application requirement, and support uplinks to various IoT Servers.

MDS120-NB supports BLE configure and OTA update which make user easy to use.

MDS120-NB is powered by 8500mAh Li-SOCI2 battery, it is designed for long-term use up to several years.

MDS120-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
• 60Ghz Microwave Radar for distance detection
• Measure Range: 15 ~ 1200cm
• Accuracy: ±(2cm+SX0.3%). S: Measure Value
• Measurement Angle: 25 degrees horizontal and 23 degrees vertical
• Multiply Sampling and one uplink
• Support Bluetooth v5.1 remote configure and update firmware
• Uplink on periodically
• Downlink to change configure
• 8500mAh Battery for long term use
• Nano SIM card slot for NB-IoT SIM 

Applications:  

• Horizontal distance measurement
• Liquid level measurement
• Parking management system
• Object proximity and presence detection
• Intelligent trash can management system
• Robot obstacle avoidance
• Automatic control
• Sewer
• Bottom water level monitoring 

Specifications:

Common DC Characteristics: 

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

Radar probe specification:

• Measuring Method: FMCW
• Frequency: 60 GHz
• Measure Range : 15 ~ 1200cm
• Accuracy: ±(2cm+SX0.3%). S: Measure Value
• Resolution: 1cm
• Measurement Angle : 25 degrees horizontal and 23 degrees vertical

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:    350mA@3.3v

DOCUMENTS:

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