Fire strikes every sixteen (16) seconds, expands 1,100% in four (4) minutes and kills in
excess of three thousand seven hundred (3,700) people annually across the nation.
Smoke Detectors are considered to be "early warning" fire detection devices
because of their design and operation. Installation of smoke detectors within the
residence is believed to reduce chances of dying in fire 59%. Costs of the Smoke
Detectors vary from the least expensive of ionization (radioactive) type to the more
expensive, photoelectric.
Smoke Detectors available for purchase in most stores today are generally the
ionization type because of the cost difference to the consumer, hence, are the most
widely purchased.
Most Smoke Detectors available today are powered by batteries which also vary
in cost to the user. The consumer, when considering Smoke Detectors for her/his
premises should also consider the cost and availability of the replacement batteries
which vary from the most common and accepted nine (9) volt alkaline ($1.75) to the
more expensive twelve (12) volt mercury ($9.00), which may not be cost attractive to
some.
NOTE: Rechargeable (ni-cad) batteries should not be used in Smoke
Detectors as they are not compatible for use, not attaining the higher and required
level of voltage for operation.
The Smoke Detector(s) submitted for the drawing(s) are photoelectric Smoke
Detectors and operate at nine (9) volts using the lesser cost batteries which last about a
year. A "chirping" is heard when the battery is questionable. A "test" button, sounder
and indicator should be used, heard and viewed monthly.
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