Description: Automatically detect obstacles behind the car when reversing, automatically turn on and switch. Crescent-shaped LED heartbeat type step-by-step display function, digital + sound step-by-step prompt. Microcomputer intelligent control, accurate digital display of obstacle distance, accurate and reliable. Sound + LED high-brightness distance prompt, not affected by the environment, especially in rainy days and nights. The probe adopts embedded installation, multi-color configuration, the sensor is exquisite and compact, easy to install, suitable for Cars, SUVs, van, small and medium-sized MPVs. Specification: Material: Plastic LED Display Size: 100 x 22 x26mm/3.9 x 0.9 x 1.0 inch Host:105 x 60 x 22 mm/4.1 x 2.4 x 0.9 inch Power supply voltage: 12V Power: 2W Probe: 4 Working frequency: 40KHz Working voltage: 12V DC Working temperature: -30~+70 (°C) Consumption current: 20ma-200ma Alarm volume: 70 ~ 85dB (30cm) Detection range: 2.5m Alarm distance: 0.3 ~ 1.5m or 0.4 ~ 1.5m Screen size: 10cm Package Includes: 1 Piece LED Display 1 Piece Main Control Box 1 Piece Manual 1 Piece Double Side Sticker 1 Piece Power Cable 1 Piece Hole Saws 4 Pieces Parking Sensors Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!