The reliability of the Blind Spot Monitoring System depends on the technical solution and product quality. Currently, mainstream solutions employ 24GHz or 77GHz millimeter-wave radars, with the 77GHz radar demonstrating superior performance in detection accuracy (up to 70 meters) and interference resistance (operational in adverse weather conditions). Premium systems such as Degu Technology's third-generation product utilize one-transmit-four-receive radar technology, achieving a false negative rate below 0.01%. These systems can monitor the side and rear areas within a 3.7 to 15-meter range in real-time and effectively mitigate lane-changing risks through audible and visual alerts. Note that low-cost products in the market may employ less stable one-transmit-one-receive radars, posing risks of false alarms and missed detections. Actual performance is also influenced by installation positioning, calibration precision, and alert methods (rearview mirror light warnings outperform central display notifications). Systems equipped with dual-probe synchronous monitoring, high-precision algorithms, and all-weather operation capabilities are recommended as priority choices.
