Parking Sensor - Assistant 4 X Sensors Plus Led Monitor

                                                        Parking Sensor - Assistant 4 x Sensors plus LED monitor                                                                                                                                                     Features:Support 4 ultrasonic sensors.Show the distance by LED.Alert the obstacles distance by simulatorWarn by the sound of BiBi.Waterproof anti-drizzle and quakeproofDetection range is as far as 200cm from 30cmHave probe self-checking function Specifications:1. Rated voltage: DC 12V2. Working voltage: DC 9~16V3. Working current: 30~180mA4. Detection range: 0.2~2.0m5. Ultrasonic frequency: 40 KHz