What does rec flash mean?

What does the rec flash mean? The flashing of the driving recorder rec indicates that a video is being recorded and shot. Rec is the abbreviation of the English word Recording, which means video recording. At present, the driving recorder is a necessary safe driving equipment for every private car owner. Driving recorder is an instrument that can record the pictures and sounds encountered by cars during driving. The machine is mainly composed of host computer, speed sensor, sound sensor, camera and data analysis software. The main functions are: playing back the shot images, helping to restore the scene of the accident and providing clues for solving traffic accidents. It can be used as evidence to correct the phenomenon of touching porcelain, record the route and be convenient to use. Can be used for parking monitoring. I don't know how to set up a driving recorder for the first time, so I need a course of driving recorder. When installing the driving recorder, you need to turn on the power switch first. After the home page is displayed, select the up and down keys to select the item, then press OK to enter the settings, and then press OK to confirm the saving. There are always options such as image quality, resolution and taking pictures. When the power supply is connected, the driving recorder will automatically start recording. If you want to watch the recorded video, you can choose to play it on the homepage.