Who invented the first smoke detector?

Answer The first home smoke detectors were made by Stanley Peterson and Duane Pearsall in 1965. The units used batteries, making it easy for homeowners to install and replace them. Peterson and Pearsall's... Read More »

Top Q&A For: Who invented the first smoke detector

When was the smoke detector invented?

Francis Upton invented the first smoke detector in 1890. Walter Jaeger accidentally invented another smoke detector in 1930 while he was trying to make a poisonous gas sensor. Duane Pearsall and St... Read More »

What does it mean when first alert smoke detector beeps 3 times?

According to a First Alert user's manual, three beeps or chirps indicate a possible malfunction in the unit that requires immediate replacement. These beeps are often accompanied by simultaneous LE... Read More »

When was the first lie detector invented?

The polygraph, was invented in 1921 by John A. Larson. Larson was also the person who named the machine a "polygraph." This, the first lie detector machine, measured both respiration and blood pres... Read More »

How to Install a Smoke Detector or Carbon Monoxide Detector?

It's an overused saying - better safe than sorry. Most fire deaths occur in homes lacking smoke detectors.[1] To protect your loved ones, it is imperative that you install smoke and carbon monoxide... Read More »