??three-stage beeping mode ??Stick-on and insert-in sensor ??BiBiBi alarm sound ??2/4 sensors Technical Data:??Rated Voltage:12V??Operating Range: 10.5~16V??Rated Current:20~200mA??DetectingDistance:0.30~1.5m??Ultrasonic Frequency:40KHz??Working Temperature:-30~+70??/p>