Features:
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; 
Blue background 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)