Product information: Technical parameters: 1. Detection distance: 0.3~2m (3m) 2. Alarm distance: 0.3~1.5m (2m) 3. Error range:<1cm 4. Scope:<0.9m 5. Working frequency: 40KHz 6. Working voltage: 12V DC 7. Consumption current: 20ma-200ma 8. Working temperature: -40 °~80 ° 9. Alarm volume: 70-85dB (at 30cm) 10. Maximum power: 2.5w Functional Features: 1. Automatically detects obstacles behind the car when reversing, automatically switches on and off. 2. Crescent shaped LED heartbeat type step-by-step display function, with digital and sound step-by-step prompts. 3. Microcomputer intelligent control, precise digital display of obstacle distance, derived from military technology, accurate and reliable. 4. Sound+LED high brightness distance indication, unaffected by the environment, especially in rainy and dark days. 5. Anti electromagnetic interference, patented technology, international certification, quality assurance, without any impact on the original electronic system. 6. The probe adopts embedded installation, with multiple color configurations available. The sensor is exquisite and compact, making installation convenient. When shifting into reverse gear, the system automatically enters the detection working state; 30CM~200CM, centimeter level display accuracy, precise display of obstacle distance; Green, yellow, and red five segment LED light bars indicate the distance between obstacles; Indication of the position and orientation of left and right obstacles; Bi. Bi. Bi. The beep sounds a step-by-step alarm prompt, and the closer the distance is, the faster the alarm sound becomes; Dual CPUs respond quickly Probe self check function, with abnormal probe status prompt to avoid reverse collision caused by probe damage; Fashionable, high-quality, cow like leather grain subminiature LED digital display, in line with the style of Dashboard desk, easy to install; Embedded probe installation method, simple and convenient installation, with optional probe colors Packing list: Main components: 1 main unit, 4 probes, and 1 display, Auxiliary parts: 1 hole opener, 1 power cord, 1 manual, 2 Double-sided tape stickers Product Image: