INFRARED (IR) MOTION DETECTOR.a A sensor which detects changes in the infrared light radiation from parts of the PROTECTED AREA. Presence of an intruder in the area changes the infrared light intensity from his direction. INFRAREDanbsp;...
|Title||:||Terms and definitions for intrusion alarm systems|
|Author||:||United States. National Bureau of Standards. Law Enforcement Standards Laboratory, G. N. Stenbakkken, W. E. Phillips, S. E. Bergsman, National Institute of Law Enforcement and Criminal Justice|