CCTV cameras are an essential part of home and office security systems. They help us in guarding our valuables from thieves and burglars. They help in keeping our residential and commercial spaces safe and sound. With a wireless CCTV camera you can always keep an eye on your young ones or your adorable pets even when you are away from them. WiFi CCTV cameras, including door security cameras, enable a user to receive instant sound and motion detection alerts on the smartphones if there is anyone trying to get close to your house or flat. Also, for better CCTV surveillance, many of the home security cameras incorporate a night vision functionality which allows for maximum visibility even in complete darkness.