By Mike Selvon

You have probably seen many different motion detectors. They are found in many places and are used for many different reasons. The exact definition of a motion detector is a device that contains a mechanism or sensor that measures motion.

It can be used in conjunction with a device to sound an alarm when triggered. When a motion detector is triggered by something passing in front of it, a light might turn on, or an alarm might sound. There are also types of motion sensors that are used to open doors and the like when individuals come close to them, and these use one radar type of sensors to activate the doors.

Now that you are familiar with motion detectors, let's explore the different types that exist. There are actually several different types of detectors. The internet lists all different types of alarms, including infrared.

These ...