detected behind the vehicle. Once the reverse gear is engaged, each sensor
positioned on the back of the vehicle emits an ultrasonic signal which detects
objects located behind the vehicle. The driver is warned by both visual and
audible signals. The visual warning system (LED display unit) displays the
precise distance between the sensors and the object. Concurrently the
audible warning system provides a stage-by-stage beeping sound that
becomes more rapid as the vehicle approaches the object.
Features: L20-4
4 flush-fitted ultrasonic sensors to detect objects
LED digital display: 3 colours/7 lights display the distance between object and vehicle
3-stage audio warning system. Stage-by-stage alarm
Audio warning volume can be adjusted with mute setting also available
System is automatically activated when the reverse gear is engaged
Working voltage: 9-27C
Beeper volume: 90-105dB
Frequency: 40Khz
Detection range: 0.5-1.5m
Package Includes: L20-4
LED digital display
4 ultrasonic sensors
Hole saw
Microcomputer box (control unit/main unit/CPU)
Cables
Special Features:
- 4 flush-fitted ultrasonic sensors to detect objects
- LED digital display
- 3-stage audio warning system.
- System is automatically activated when the reverse gear is engaged














