1. Smoke Detectors
... sound the alarm. New homes are also required to have a smoke detector installed inside each room used for sleeping. (Webster's International Encyclopedia) Impact of Smoke Detectors Fire services across the county have played major and influential public education role in alerting the public to the benefits of smoke detectors. Another key factor in this huge and rapid penetration of both the ... the ions and neutralize them, so they do not reach the plate. The drop in the current between the plates triggers the alarm. In photoelectric detectors smoke can block a light beam. In this case,...
- Word Count: 1727
- Approx Pages: 7
- Has Bibliography
- Grade Level: High School