Flashing LED parking sensor

Detailed Product Description:
When the reverse gear is engaged, the system will work automatically.
Display unit with built-in 4-stage audible warning buzzer.
Digital LED display to show the distance.
Distance to obstacles is indicated by 4-color LED lights (green, blue, orange and red).
4 LED lights to indicate left/right obstacle.
Voice indication (optional).
Use imported MICROCHIP CPU from USA.
Detecting Range: 2.0m ~ 0.4m
Working Temperature: -30℃~ + 85℃
Operating Voltage: 12V ~ 24V
Frequency: 40KHz
Available Models: 2, 4, 6, 8 sensors