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.
CO detectors measure CO levels in the environment and sound an alarm to warn you to ventilate the affected area. Two basic types of CO detectors. CO detectors are either battery operated or electric. Most CO detectors on the market use one of the following three sensor types. 1. Electrolytic Sensor Detectors-This type of sensor is extremely sensitive to detecting CO in the home. Although it is the most efficient type of CO detector, it is rarely used due to its significant cost. 2.