Detailed Product Description
Three parts components:
1) Ultrasonic sensor, color for optional
2) Control box with built-in wireless transmission system
3) LED display with built-in wireless receiving system

Function: When the reverse is engaged, the system will start to work automatically. The system intuitively indicates drivers of obstacles by three colors on the display.

Features:
1) Stage by stage Bi Bi sound alarm to avoid colliding
2) With transmitter built-in control box and receiver in display, control box
Transforms signals from sensors into digital data and sends to display via radio frequency. No cable is needed any more between control box and
Display
3) Detection distance: 0.35 - 2.0m
4) Alarm will be quicker and quicker upon the obstacle more and more near within 1.5m

5) Wireless receiving distance: 20m (minimum)
6) Transmit frequency: 433MHz
7) Sensors applicable: All types of our factory
8) Working voltage: 12??3V
9) Input 4W (max. ) display + control box
10) Beeper: 70~105dB
11) Working temperature: -40 ~ +80??C
12) Frequency: 40kHz
13) Best detection distance: 0.5 - 1.5m.