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Compact Radar Distance Sensor for Short-Range Level & Object Detection
The Dragino MR-03-LB2 is a compact LoRaWAN® Microwave Radar Distance Sensor designed for accurate short-range distance and level measurements using advanced 80GHz FMCW radar technology. Unlike ultrasonic sensors, radar measurements are largely unaffected by dust, humidity, condensation, rain, steam or lighting conditions, making the MR-03-LB2 ideal for challenging industrial and outdoor environments.
With a measurement range from approximately 0.2m to 3m, the MR-03-LB2 is optimized for applications such as waste bin monitoring, small tank level measurement, object detection, smart parking systems, industrial automation and smart city deployments. Its narrow beam angle enables accurate measurements in confined spaces and applications requiring precise target detection.
The sensor features LoRaWAN® Class A communication, allowing long-range wireless data transmission with extremely low power consumption. An integrated 8500mAh Li-SOCl₂ battery provides multi-year autonomous operation, minimizing maintenance requirements and installation costs. Dragino's Bluetooth configuration capability and OTA firmware updates simplify deployment and long-term management.
Combining high reliability, long battery life and industrial-grade design, the MR-03-LB2 is an excellent solution for short-range distance monitoring projects requiring robust wireless connectivity and maintenance-free operation.
Key Features
✔ 80GHz FMCW Radar Technology
✔ Measurement Range up to 3m
✔ Reliable in Dust, Steam & Condensation
✔ LoRaWAN® 1.0.3 Class A
✔ Bluetooth v5.1 Configuration
✔ OTA Firmware Upgrade
✔ 8500mAh Li-SOCl₂ Battery
✔ High Accuracy Distance Measurement
✔ Narrow Beam Angle
✔ Battery Status Monitoring
✔ Industrial Outdoor Design
✔ Ideal for Smart Bins & Small Tanks
Typical Specifications
• Technology: 80GHz FMCW Radar
• Measurement Range: 0.2m ~ 3m
• Resolution: 1mm
• Accuracy: ±20mm
• LoRaWAN® 1.0.3 Class A
• Bluetooth v5.1
• OTA Firmware Upgrade
• Battery: 8500mAh Li-SOCl₂
• Long Range Wireless Communication
• Operating Temperature: -40°C ~ +85°C
Applications
Smart Waste Bins
Small Tank Monitoring
Industrial Automation
Object Detection
Smart Parking Systems
Sewer Monitoring
Liquid Level Monitoring
Smart City Infrastructure
Package Includes
✔ 1 × Dragino MR-03-LB2 Sensor
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Product Downloads
- Model: MR-03-LB2
- Technology: 80GHz FMCW Radar
- Measurement Range: 0.2m ~ 3m
- Accuracy: ±20mm
- Resolution: 1mm
- LoRaWAN: Class A
- Bluetooth: v5.1
- Battery: 8500mAh Li-SOCl₂
- OTA Firmware: Supported
- Operating Temperature: -40°C ~ +85°C