The SRR189L is a dedicated 24GHz millimeter-wave radar sensing module designed for vehicle speed measurement, utilizing Frequency-Modulated Continuous Wave (FMCW) technology to achieve high-precision distance and velocity detection within a 100-meter range. Its key advantage lies in all-weather reliability, ensuring uninterrupted operation in rain, fog, snow, and other harsh conditions for 24/7 dependability.
Technical Parameter Comparison
| Parameter | SRR189L 24GHz | Traditional Ultrasonic Sensors |
|---|---|---|
| Detection Range | 1–100m (adjustable) | ≤10m (highly susceptible to environmental interference) |
| Speed Measurement Accuracy | ±0.5m/s | Incapable of speed detection |
| Range Resolution | 0.5m | ≥1m |
| Power Consumption | 15mA (average) | ≥30mA (continuous operation) |
| Interface Types | RS485/TTL multi-interface | Single analog signal output |
Application Scenarios
By leveraging the penetration and interference resistance of millimeter-wave radar, the SRR189L overcomes the limitations of conventional sensors, delivering a cost-effective, highly reliable speed sensing solution for smart traffic management, autonomous driving, and security applications, driving the upgrade of urban intelligent transportation systems.










