The Dragino MR-XX-NB/NS is a  NB-IoT Microwave Radar distance Sensor for Internet of Things solution. It uses 80Ghz 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 MR-XX-NB/NS 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.

 MR-XX-NB/NS supports BLE configure and wireless OTA update which make user easy to use.

MR-XX-NB/NS supports different uplink methods include TCP, MQTT, UDP, MQTTs or CoAP for different application requirement. and Support Uplinks to various IoT Servers.

MR-XX-NB/NS is powered by 8500mAh Li-SOCI2 battery or solar panel with Li-ion battery, it is designed for long-term use up to several years.

• 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
• 80Ghz Microwave Radar for distance detection
• Measure Range: 3m: 200 ~ 3000mm; 12m: 200 ~ 12000mm; 25m: 200 ~ 25000mm
• Accuracy: ±20mm
• Resolution: 1mm
• Measurement Angle: 7.6 degrees horizontal and 7.6 degrees vertical
• Multiply Sampling and one uplink
• Support Bluetooth v5.1 remote configure and update firmware
• Uplink on periodically
• Downlink to change configure
• 8500mAh Li/SOCl2 Battery (MR-XX-NB)
• Solar panel + 3000mAh Li-ion battery (MR-XX-NS) 

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 

Common DC Characteristics: 

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

Radar probe specification: 

• Measuring Method: FMCW
• Frequency: 80 GHz
• Measure Range : 3m: 200 ~ 3000mm; 12m: 200 ~ 12000mm; 25m: 200 ~ 25000mm
• Accuracy: ±20mm
• Resolution: 1mm
• Measurement Angle : 7.6 degrees horizontal and 7.6 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

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

Part Number: MR-XX-NB-GE  or MR-XX-NS-GE

XX: Measure Range, options: 03: 3 meters; 12: 12 meters; 25: 25 meters.

YY:

• GE: General version ( Exclude SIM card)