A wireless motion alert device is an extremely useful gadget that can be used by various individuals in order to protect their homes, offices, dorm rooms and storage sheds. They usually consist of two modules where one is a detector and one is a receiver. The basic advantage of a wireless motion detector is that it does not require any wiring and can be setup easily in a matter of minutes. Hence they are more affordable and relatively cheaper if one were to buy a basic model. They can also be carried around and transported easily.
Motion detectors usually employ various technologies. Mainly devices are equipped with infra red detection modules that work by identifying heat signatures given off by objects. On the other hand, microwave detection units emit microwaves that are reflected off of objects and then recognized by the device. Microwave detectors are more sensitive and have a far greater range than infra red devices because they cannot be blocked by walls or other obstructions. Similarly, ultrasonic devices are even more sensitive than microwave detectors and have a far greater range.
Every wireless alert system has a completely different range and depends upon the location that it is to be used in. Individuals who have installed the detector unit right in front of the house require a range of 100 meters between the receiver units whereas individuals residing in stone houses should go for detection units that have a range of 250-300 meters. On the other hand, each detection unit has a specific range in which motion will be detected. Wireless motion detectors are normally placed within the vicinity that is to be secured and the receiver unit is placed at the user’s discretion. The detection unit normally has a range of 30 meters within which it easily recognizes all types of movement.
On the other hand, there are various other units such as microwave detectors as well as ultrasonic detection models that have a far greater range of 50 meters as well as 70 meters. Consequently, it is up to the discretion of the user in regards to what sort of range he requires as well as the distance between the receiver and the detection unit. Generally the major advantage of a wireless motion alert device is the fact that it can be easily transported and does not require any wiring. It is also powered by rechargeable batteries whereas the receiver unit can be powered by batteries as well as a direct AC outlet.
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