A broken CD or DVD or other type of optical disc is a serious problem and one that will likely lead to loss of information stored on this media. A broken optical disc refers to a disc that has split into two or more pieces or perhaps a disc simply missing one piece.
A motion detector is a device that detects moving objects, particularly people. A motion detector is often integrated as a component of a system that automatically performs a task or alerts a user of motion in an area.
Their use is recommended for detecting moving objects outdoors or in thoroughfares indoors. The scope of installing or suggesting Motion Detectors is greater as compared with a True Presence or an Occupancy Sensor. The Costs of a Motion Sensor is lower as compared to the Presence sensor due to the technology and sensitivity involved. High-resolution and sensitive: Presence detectors respond to the tiniest movements using extremely high resolution, precision sensor technology.