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·Drill in type sensors
·Human voice warning the distance is optional
·Microcomputer CPU intelligent control
·Anti electromagnetic interference
·Built-in buzzer

·Detecting the behind obstruction when you reverse your car, start working automatically
·American CPU control, exactly number show the distance, source from military technology.
·Human voice warning the distance is optional, far from the environment
  influence, good working special in the rainy day and night
·Anti electromagnetic interference, proprietary technology, international proved,
  brand guarantee, no any influence for original electronic system
·Drill in install sensors, various color to match your car, compact ultrasonic sensors,   easy installation
·Buzzer built- in the display, with sound switch, more humanization and convenience.

·Distance: Back 0.3M - 2.0M            
·Voltage: DC12V(±2V)
·Current: 20mA-200mA                   
·Max Power: 2W
·Ultrasonic Frequency: 40kHz                      
·Temperature: -20℃ - +80℃
·Volume: >80DB