Seen here is Purchasing Manager Andre Perkic holding a Visonic Motion Detector
Alarm system motion detectors should be both advance and easy to install. Typically, only one motion detector is part of a home security system kit. Therefore, getting an additional motion detector is a common thing to do and is well worth it. Most alarm system motion detectors are PIR operated. A PIR motion detector has a sensor that detects the passive infrared radiation produced by body heat. This kind of heat can be detected, but not seen by the human eye alone.
How to Choose –
Of course, if your alarm system is hardwired then you are looking for a hardwired motion detector. On the other hand, if your system is wireless then you should look for a wireless one. In addition, if you are looking for a hardwired detector then you can mix any brand, but if it is wireless, you have to stay within the same manufacturer brand.
Where to Install –
Now that you have picked the right kind of PIR motion detector, it’s time to install it. Alarm system motion detectors should be corner mounted about seven feet up from the floor for best coverage. That’s the general rule. Even if it’s placed in the hallway, it should be placed in the corner and not extremely high. Remember, PIR motion detectors are designed to cover one room and one room only. It can’t see through a doorway or out a window.
BONUS INFO!!! – Pet Immune Motion Detectors –
In addition, no longer are the days of placing masking tape over the lower portion of the motion detector lens to make your motion detector pet immune. That’s because motion detectors are now sold to accommodate dogs and other animals so that they can move around freely without triggering an alarm. With pet immune motion detectors, motion is detected when an infrared source with one temperature (such as a human) passes in front of an infrared source with another temperature (such as a wall). With pet immune PIR motion detectors, smaller changes in temperature will not register in the same zone as heat produced by humans, therefore if say a 20 pound dog (depending on the PIR sensitivity that is set) passes by, the motion detector will not trigger an indication of intrusion.
