Colorful LCD Parking Sensor
Automatically activated when reversing gear is engaged;  
The closer the obstacle is, the faster the alert beeping frequency is to indicate the safety zone, caution zone and danger zone; 
2/4/6 ultrasonic sensors selectable; 
Voice report optional;
Colorful screen;
Adjustable volume: ON/OFF;
Dynamic digital LCD display to indicate different distances
as well as orientation of the obstacle (front or back); 
Dynamic sketch indicator of the working sensors;
Exact distance display;
STOP reminder. 

Technical parameters:
Operating voltage: 12V DC (24V optional)
Operation current: 20mAh ~ 200mAh
Sensor installation height: 45 ~ 60cm
Detection distance: 0.2 ~ 2.0m
Ultrasonic frequency: 40kHz
Operating temperature: -40°C ~ +85°C
Beep volume: 80 ~ 100dB (at 30cm distance)