Easy to Use: When the vehicle is engaged in reverse gear, the reversing radars system automatically enters the detection working state. Accuracy: 30-250 centimeter-level display accuracy, accurately display the distance of obstacles, stop the vehicle in time. Easy to View: High-quality LCD digital display, real-time display of green, yellow and red 7-segment LED light bar to indicate obstacle distance. Sound Alarm: The " buzzer give a step-by-step alarm prompt, the closer the distance is, the faster the alarm sound be. Reliable Quality: Dual CPU design, quick response, support probe self-check function, abnormal status prompt, preventing reverse collision caused by probe damage. Easy Installation: Flush mount design with drill bit for easy drilling on car bumper. It is compatible with 12 V vehicle in the market. Parking Sensor Quantity: 4pcs Working Voltage: 12 V(9.6-16V Wide Voltage Operation) Working Current: 20-200mA Detection Distance: 0-2500mm Display Distance: 300-2500mm Alarm Volume: equal 80dB Working Temperature: -30-70 Frequency: 40KHz1KHz Display Size: 81 x 40 x 40mm/ 3.2 x 1.6 x 1.6inch Control Box Size: 90 x 60 x 22mm/ 3.5 x 2.4 x 0.9inch Sensor Size: 24 x 24 x 19mm/ 0.9 x 0.9 x 0.7inch Colour:As Shown Material:plastic The actual product may have slight color difference or difference, which not affect the use Package Contents: 1 * Car Parking Sensor Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.