Introduction to Fire Alarms 10 - How Smoke Detectors Work
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8 سال پیش
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I'm explaining how fire alarm
I'm explaining how fire alarm systems work for new technicians or other employees who deal with these systems. This is my 10th video in a string of many Khan Academy-styled lessons. This video describes how both photoelectric and ionization smoke detectors detect smoke.
8 سال پیش
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258
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