A home security monitor camera can alert you to the arrival of any guests long before they reach your door. A home security monitor camera can also be used as a baby monitor to keep a watchful eye over your child while they are awake or asleep. Finally, a home security monitor camera used in conjunction with an electronic door can be used as an entry/exit monitor, allowing the user to see who is at the door and allowing them access without the need to greet them at the door.
A spy camera DVR or Digital Video Recorder usually differs from typical digital video security system DVRs because of the necessity for portability. Most spy camera models capture video at a lower size than standard which also requires lest DVR capacity.
A camera mounted infrared illuminator is used with most night vision infrared digital video surveillance and security cameras to provide invisible light that is used to create an infrared digital video. The illuminator is normally aimed in the exact same direction of the camera lens so that it can provide infrared light beams to illuminate the target area. Infrared illumination can be “seen” by the camera, but cannot be seen by the human eye.