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 How does an alarm bell work?

Answer Even in the age of electronic buzzers, motorized or electromagnetic alarm bells still ring out in countless facilities to warn occupants of a fire or other emergency.FunctionAlarm bells alert peopl... Read More »
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Top Q&A For: How does an alarm bell work

How Does a Personal Alarm Work?

Personal alarms are small, mobile devices that emit a loud sound or siren when activated. They give people a simple, effective, first-line defense when exposed to threatening situations.
http://www.ehow.com/facts_7353210_personal-alarm-work_.html

Does Leakfrog work like a smoke alarm?

Yes, a Leakfrog water alarm works by detecting water as shallow as 1/32 inch. When water is detected, an alarm goes off and continues to sound until it is shut off. Leakfrogs are often used in bas... Read More »
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Does the alarm for the iPhone 3GS work if you have headphones in?

How Does a Ford Taurus Anti-Theft Alarm System Work?

Rhyming games and activities help kindergarten students connect reading and word-association skills. In the kindergarten classroom, a lot of time is devoted to teaching, practicing and playing game... Read More »
http://www.ehow.com/how-does_5016536_ford-antitheft-alarm-system-work.html


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