. Selling Point: 1. When reversing, the obstacle behind the automatic rover can be opened and switched automatically. 2, crescent LED heartbeat type step by step display function, digital + sound step by step prompt. 3, microcomputer intelligent control, accurate digital display obstacle distance, accurate and reliable. 4, sound +LED high brightness distance prompt, not affected by the environment, rainy days, night especially advantage. 5, anti-electromagnetic influence, quality assurance. It has no effect on the original electronic system. 6, the probe adopts embedded installation, multi-color configuration, the sensor is delicate and small, easy to install Special Note: 1. Parking sensor is a road vehicle proximity sensor designed to alert the driver of obstacles when parking. These systems use electromagnetic ultrasonic sensors. 2. These systems feature ultrasonic proximity detectors that measure distance to nearby objects through sensors located in front bumper and/or rear bumper skin or sensors that minimize vision in adjacent grilles or grooves. 3, the sensor sends out an acoustic pulse, and the control unit measures the return interval of each reflected signal and calculates the distance of the object. The system alerts the driver in turn with acoustic tones, frequency indicating distance, faster tones indicating closer distance, and continuous tones indicating minimum predefined distance. 4. The rear sensor may be activated when the reverse gear is selected and deactivated once any other gear is selected. 5. Because ultrasonic systems rely on the reflection of sound waves, the system may not be able to detect flat objects or objects that are not sufficiently reflective of sound, such as narrow rods or longitudinal objects pointing directly near vehicles or objects. Objects with a plane angled to the vertical direction may deflect the returning sound wave from the sensor, thus hindering detection. In addition, soft objects with strong sound-absorbing properties may have weak detection capabilities, such as wool or moss. 6. Note: The maximum effective detection range of reversing radar is 2.5m. For different obstacles, the ultrasonic reflection strength is different, and the detection distance is also different. Specifications Detection distance: 0.3~2.5M Alarm distance: 0.3~1.5M Operating frequency: 40KHz Alarm sound: 70~85dB(30cm) Power supply voltage: 12V DC Current consumption: Maximum 200mA Operating temperature: 20C-65C