Many cameras on the market keep a constant recording of what’s going on in their visual range. A constant feed.
A 24/7 recorded feed is great for the fact that you can be sure everything the camera sees is kept. But it can be an issue when sifting through footage to find the specific time the camera actually saw something you should be aware of.
A solution to this is to use motion cameras. As the name suggests, these cameras will only start recording when it picks up movement within its visual range.
Another great advantage to motion cameras is that they are usually independent units. So they do not need to be connected to a computer or a power supply. Simply put the camera in a spot you consider a prime place for intruders, and come back to the camera after you suspect it may have picked something up.