本实用新型涉及一种汽车倒退防撞报警装置，特别适用于超声波传感器的报警装置。
The utility model relates to an automobile falling back colliding preventing alarm device which is an alarm device especially suitable for ultrasonic sensors.
本实用新型涉及一种汽车倒退防撞报警装置，特别适用于超声波传感器的报警装置。
The utility model relates to an automobile falling back colliding preventing alarm device which is an alarm device especially suitable for ultrasonic sensors.
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