The Dragino MR-03-CB is a NB-IoT/LTE-M Microwave Radar distance sensor. It uses 80Ghz Microwave to detect the distance between sensor and different objects. Compare vs ultrasonic or Lidar measurement method, Microwave Radar is more reliable for condensation / dusty environment. It can sense correct distance even there is water or thick dust on top of the sensor.

The MR-03-CB 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.

It can convert the readings upload to IoT server via NB-IoT/LTE-M Network. You can use various IoT Servers and different uplink methods including MQTT, MQTTs, UDP and TCP.

The sensor node uses Quectel BG95-NGFF Multi-band LTE Cat M1/Cat NB2 module with GPS which can be used in most European countries. It has a card slot for an NB-IoT/LTE-M SIM card.

This device supports BLE for easy configuration and wireless OTA to update the firmware.

MR-03-CB is powered by 8500mAh Li-SOCI2 battery , it is designed for long-term use up to several years.

More information is available on the website of Dragino.