In the event of a break in, this valuable information might just help police to recover your stolen goods faster, keeping your family safer and providing peace of mind. 4. What You Need To Know When Buying. Technological inventions and improvements around the world is bringing the need for safety and security in everything. Keeping one’s home safe and secure has been one of the most discussed topics. Early in the days gate and a lock on it meant the home was safe, then followed the grill system in the verandah which further went to windows and now despite keeping all the windows and doors shut people are having to rely on technology to safe guard their home and property. Certain technological advancements are made at an economical price to make it affordable to layman. Cameras, door and window sensors, smoke and fire alarms, doorbell cameras are a few of the quotable inventions in recent times. Surveillance camera is starting to become a need of the hour. With crime rate increasing around the city, the police and safety patrol agents in the city insist residents to install surveillance cameras with back up memory options. These not only help keep an eye on any suspicious activity, sometimes also helps to playback the old footage and check of repetitive suspicious activity.