




120GHz Millimeter Wave Sensor Level Radar Module 0.01–20m
The LDRR03M 120GHz ranging radar module adopts FMCW frequency modulated continuous wave mode and microstrip array antenna, which can replace laser, industrial ultrasonic ranging radar and other products. The product is small in size and compact in structure, making it suitable for various ranging application scenarios.
1. Ultra-High Precision
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Accuracy: ±1mm (with external lens antenna)
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Resolution: 1mm
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Ideal for fine distance measurement applications
2. Extremely Compact & Lightweight
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Dimensions: 45.15mm × 45.15mm
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Weight: 7g – easy to integrate into space-constrained systems
3. Extremely Narrow Beam
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Beam width: ±3° (both horizontal & vertical)
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Minimizes interference from surrounding objects
4. Wide Operating Range & Low Power
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Measurement range: 0.01 ~ 20m
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Power consumption: 25mA @ 12V (typical)
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Operating voltage: 9–24V DC
5. Flexible Communication & High Reliability
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Interface: RS485 (115200 baud rate)
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Protocols: ASCII / MODBUS (freely switchable)
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Operating temperature: -45°C to +85°C
Main Parameters
| Transmission frequency | 120-123.5GHz |
| Output power | 13-20dBm |
| Beam width (-3dB) | Level±3°, Vertical±3° |
| Working voltage | 9-24V, typical 12V |
| Working current | 25 mA |
| Communication | RS485 |
| Baud rate | 115200 |
| Protocol | ASCII/Modbus |
| Working temperature | -45~+85 |
| Refresh rate | 0.1-2Fps |
| Overall dimensions (diameter x height) | 45.15x 45.15mm |
| Weight | 7g |
| Ranging range | 0.01-20m |
| Measurement accuracy | ±1mm (external lens antenna) |
| Resolution | 1mm |
| Start-up time | 1s |
Get Free Quote of 120GHz Millimeter Wave Sensor Level Radar Module 0.01–20m
Application
The 120GHz radar system can precisely measure the distance of stationary or moving targets. The output of the sensor can be configured based on the filtering results of the range or signal strength.
Technical Support & Custom Solution
We provide datasheet, dimension drawing, interface protocol, demo code and technical support.
Support sample test, ODM/OEM customized service, welcome global customers to inquire and cooperate.
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