Spy Motion Detectors
If you need a motion detector that is virtually unnoticeable to be part of your complete home security system, then you need a spy motion detector - some are even made the size no bigger than a golf ball and are made to blend nicely within a wall.
Spy motion detectors are compact and the most sophisticated ones work off passive infrared (PIR) technology which are designed to operate day or night. The detectors can be designed to work with a specific system or any given home alarm, surveillance, or automation system to automatically activate lights or other devices when you walk into a room.
In addition, some spy motion detector devices have a small hidden camera within the device that is only activated upon just movement - these kinds of detectors might look like a standard motion detector, but really are not. There are even spy motion detectors housed within alarm radios, clocks, and smoke alarms designed to activate a spy camera only when prompted by movement as well. Furthermore, some spy motion detectors are standalone devices that work off battery and sound an alarm if moved. These kind of spy detector can be place in a backpack for example. If picked up by someone the alarm is activated.
Spy motion detectors can be used to not only help catch or prevent an intruder or thief, but can be useful for other security matters as well. For example, to monitor your nanny, cable man, employees, or even your children.