倒车雷达是由超声波传感器、主机、显示器、声音系统等组成。当汽车倒车时，倒车雷达自动启动工作，超声波传感器检测出汽车和障碍物之间的距离，并将距离显示在屏幕上，同时发出嘀嘀蜂鸣报警声，帮助司机了解障碍物信息，轻易倒车。
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.
