The DUALTEC explained ...PIR, MICROWAVE but WHY? (movement detector)
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Instalación correcta de detectores de exterior para alarmas eficientes - Garnet
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PIR motion detector - HOW IT WORKS (easy to understand)
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Old RELAY elevator controller - complete run-through (beginners welcome!)
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Metallica, Queen, Nirvana, Guns N Roses, Bon Jovi, ACDC 🔥 Best Classic Rock Songs 70s 80s 90s
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Ultimate Guide to Smart Home Sensors + ideas
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Passive infrared motion sensors: a two-bit camera powered by crystals
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PIR Sensors And How To Use Them
4:56