Maintaining security over a large area require keeping close eye watch. Human senses have limitations so man invented some excellent gadgets as digital dvr recorder the latest models of which have DVR cards with up to 8 camera connections on them. In similar lines there are gadgets as Hidden watch camera which is very needful these days for personal and public protection. Even the attachment gadgets with such cameras comes GSm alarm systems which provide alerts on specific circumstances and can avoid any mishaps.