| 摘要 |
A side alarm for vehicles has a post mounted in a front side of the vehicle; and at least one monitor mounted on the post. In usage, the monitor can be pivoted manually and is connected to a screen in the vehicle. When the monitor is switched on, the monitor can shoot the scene outside of the vehicle. The scene of the monitor is transferred to display on the screen in the vehicle so that a driver can monitor the road condition by the screen to avoid the car accident.
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