If you have a nanny or other staff at your house, spy devices for home security come in handy. You can review the footage to make sure the people in your home are following your instructions and investigate the case of a misplaced or missing item.  Keep track of your car, child, or other valuables using our GPS-enabled spy gear. Just pull up your cell phone app and see where the GPS tracker is currently located, down to specific coordinates on a map.