Question

 When were smoke detectors invented?

Answer The first battery-operated residential smoke detector was invented in 1967 by Duane D. Pearsall of BRK Electronics. The company went on to develop and market the First Alert brand of smoke detector... Read More »
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Top Q&A For: When were smoke detectors invented

When were lie detectors invented?

The first lie detector was invented by Cesare Lombroso in 1895. This device, named plethysmograph, was very different than the polygraph used today. The plethysmograph simply monitored blood flow a... Read More »
http://www.answerbag.com/q_view/1903899

Who invented smoke detectors?

Francis Robbins Upton and Fernando J. Dibble invented the first automatic electric fire alarm in 1890. In 1967, Duane D. Pearsall invented the first affordable smoke detectors that could be used i... Read More »
http://www.answerbag.com/q_view/2011831

What year were smoke detectors made?

Smoke detectors were invented by George Andrew Darby in 1902. Darby was an electrical engineer in Birmingham, England. The first smoke alarms were made to detect a rise in temperature, not smoke.So... Read More »
http://www.answerbag.com/q_view/2121494

How do I reset smoke detectors?

Turn Off the PowerExamine the outside of the smoke detector to see if there is an external test button. The test button may light up. If your smoke detector is wired into your house's electrical sy... Read More »
http://www.answerbag.com/q_view/2102214


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