How do dash cams work?
Some cams feature multiple recording modes, or a built-in GPS system that tracks vehicle speed and location.
As the name implies, dash cams are compact recording devices that secure to your dashboard or windshield, but they can come in different forms and with different functions.
A camera fixed to the front dash is known as 1-channel. Rear dash cams are also available, and when used with a front dash cam, they make a 2-channel setup. Some cams feature multiple recording modes, or a built-in GPS system that tracks vehicle speed and location.
The camera records the footage and audio on a micro SD memory card in a looping manner, which means the cam overrides the oldest footage when it starts a new recording cycle. This ensures no event is missed, but the memory card needs to be top quality to withstand this constant overwriting.