Highlights:If you want other color, please send us a picture when you order. Thank you very much. 6/8 Sensors working Principle When you brake, the "EH"/"EFGH" Sensor will workautomaticallyand show the distance on the monitor, when you reverse, the "ABCD" Sensors will work automatically, and show the distance on the monitor Brand: Koorinwoo 1. Rate Voltage: 12V2. Operating Voltage Range: 9~16V3. Rate Current: 20~200mA4. Detecting distance: 0.3 - 2m5. Ultrasonic Frequency: 40KHz6. Working Temperature: -40~80C7. Display Working Temperature: -40~60C Features: 1. Size of LCD display: 100 x 20 mm2. Length of cable of LCD display: 6m3. Size of main control box: 8.9 x 6 x 2.2cm4. Weight of whole kit: 400/600/900g5. 4/6/8 sensors for your option6. Advanced chipset for enhanced coverage and detecting7. LCD display: digital and showing obstacle distance8. Detect small objects and bars9. Enable you to prevent dangerous and costly collisions10. Provide increased safety for paengers, pedestrians and family members who happen to be around the moving vehicle. 4 Sensors Control Unit 8 Sensors Control Unit