Secware_Tech6 Posted August 2 Posted August 2 There is not 1 intruder alarm sensor that can be used in all environments. For example a PIR cannot be used in rooms with fast acting heat sources. Whilst a Dualtec cant be used in close range to glass. I wrote a post detailing how they work and how to avoid common mistakes when choosing a detector technology as well as the manufacturer How Intruder alarm Movement detectors work Quote
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