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Real Instruments Plastic IR Infrared Beam Alarm, 20 meter at Rs 9000 in Chengalpattu
Long Range Solar Powered Wireless Perimeter Alarm (900 metre)
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5 Bizarre reasons your outdoor beams could be false activating. - Blue Security
Beam Detector - Two Beam Detector Manufacturer from Pune
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SM32 Alarm System Wired Outdoor 4 Beam Guardrail 40m – Afrishon Security
Outdoor triple IR beam detector AVBT - Alarm Security Systems by Av-Gad
