PIR Detector Selection Guide

Author: Brian Rhodes, Published on Apr 05, 2012

Motion sensors are a frequent source of 'false alarm' headaches in many intrusion systems. 'PIR', or 'Passive Infrared' technology have been widely deployed over many years of use, yet these sensors are still a considerable source of false alarms. In this note, we examine the major types of 'PIR' sensors, including wall mount, ceiling mount, curtain mount, describing where each type is best used, how to avoid false detections, and how to estimate pricing.

Overview of PIR function

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*** ******* ********* ***** ****** ** *** ***** **** ** sensor, *** **** ****** ************ **** *** *********. ** *******, unit **** ********* **** ******* *********** ***** *** ****** ********* zones. 

**** ****** ******** * ****** ** *****, *** ******** ******** hardware ******* ** *** **** *********.

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