Key features:
4 rear sensor system
Slim dual color LED display with built-in buzzer
Intelligent detection, compatible with rear metal bar
Automatic radio mute function
Anti-false alert technology
Self-test function
All weather design (-40℃ ~ +85℃)

Technical parameters:
Voltage:12±3V
Operating temperature: -40oC~+85 oC
Input: <300mA
Beep volume: 70~90dB
Sensor installation height: 45~60cm
Range: 0.3~1.0m