¡ò The first patented technology of variable direction recognition; ¡ò Alarm triggered direction can be changed: Through the jumper of the detector can change the triggered direction (set out the direction by itself). Not subject to restrictions on the installation location; ¡ò Microprocessor-controlled: Built-in high-performance microprocessors. To deal with real-time analysis of sensor information. Accurately identify the invasion of human signal¡¢distinguish difference between the invasion direction and interference signals. Thereby significantly reducing the incidence of false positives; ¡ò Precision Narrow curtain, the maximum curtain width is only 0.8 meters; ¡ò Look down: no blind spot detection.