倒車雷達是由超聲波傳感器、主機、顯示器、聲音系統等組成。當汽車倒車時，倒車雷達自動啟動工作，超聲波傳感器檢測出汽車和障礙物之間的距離，並將距離顯示在屏幕上，同時發出嘀嘀蜂鳴報警聲，幫助司機了解障礙物信息，輕易倒車。
Features:
4 sensor system, double CPU and advanced chipset for enhanced coverage and detection (0.3-2.5m).
With digital colored LED display (number & light).
Help to prevent dangerous and costly collisions.
Help to provide increased safety for passengers, pedestrians and family members who happen to be around the moving vehicle.
Detect small children and low walls as well.
Anti-freeze and rain proof.
Easy to install.
A saw drill head included.
Specification:
Type: Car parking radar
Material: Plastic
Quantity: 1pcs
Color: Black
Rate Voltage: 12V DC
Rate Current: 100mA - 300mA
Detecting Distance: 0.3-2.5m
Ultrasonic Frequency: 40KHz
Control Box Working Temperature: -20 - 70 celcius
LED Display Size: 10*2.6*2.2cm
Control Box Size: 10*6*2.2cm
Package: 1*Main Control Box；1*LED Display Indicator；4*Parking Sensors with 2.5m Line；1*φ22mm saw drill head；1*Power Cable；2*Double Side Sticker
FAQ:
1.No obstacle, have BIBI sound
Answer: Red connect to turn lights, black connect the whole car lights, do not connect the negative.
2. No obstacle，display other number
(1) The display shows different numbers, such as E03-E07,
Answer：because the Electric current is not stable, buy a regulator specifically connected to the lights, do not shunt with the other
(2) display same number
Answer： Sensors should have 50 cm high, with the universal meter amount，sensors should be level, otherwise it will detect the ground.
