That depends on a few factors. Power usage Some cameras use more power than others, and we’re not all made of money. Make sure you don’t get so many cameras that it overwhelms your budget (or your circuit breaker). Office size The larger your workplace, the more cameras you need to cover every square foot. Of course, if you’re only looking to monitor specific areas (like the cash register or safe), the size of your workplace may be irrelevant. Field of view and pan tilt If you get a camera with a narrow viewing angle, you should consider getting more cameras to monitor every area of your business. However, if your camera has a narrow viewing angle but a wide pan tilt, you may be fine to scale back your number of cameras (as long as you frequently pan the cameras to take in every corner of the room). Frame rate Frame rate refers to the number of frames per second captured by your camera. If your camera of choice has a low frame rate, more cameras may be a worthwhile investment to help lower your chances of missing an important incident.