What is anti-masking and how its implemented in the Ajax outdoor detectors | Ajax Systems Support
Amazon.com : DSC PG9984P PowerG Wireless Dual Tech Motion Detector with Pet Immunity Up to 85lbs, 49 ft. / 90° Coverage Area, Front and Back Tamper, Anti-Masking Technology, Low Battery Indication : Electronics
Anti mask outdoor detector AVD200 AM - Alarm Security Systems by Av-Gad
Honeywell IS3050A - PIR Motion w/ Anti-Mask - Alarm Grid
Passive Infrared Motion Detector with Anti-Masking and Microwave Detection based on Doppler concept, Pet Immunity up to 55 lbs (25 kg), Form A, Quad Linear Imaging Technology. LC-103-PIMSK-W - SS&Si Dealer Network
NEW Pyronix KX15DTAM 15m Digital Dual Technology Anti Masking Motion Detector | eBay