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The Functions of Fire Horn
At first fire alarm horns were constructed out of a metal plate and
an electric shock would be sent to a small and thin metal strip which
would vibrate the metal plate,
causing the horn to produce a vibrating
horn sound. There are three main types of fire alarm horns:
One Tone Horns
The volume of this type of fire alarm horn was usually loud and the
volume could be controlled by adjusting the tightness or looseness
of the metal strip inside the horn. Certain brands of horns made use
of this outdated technology. Manufacturers noticed that the tones
produced by the horn would sometimes skip, just like the typical sound
of when a CD skips. The old type of horn that made use of this technology
was deemed useless, and manufacturers came up with new designs and
some new ideas.
Tow Tone Horns
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This type of horn, producing a two tone alarm signal, can be programmed
to produce either a code-3 horn type sound or a continuous horn sound.
This type of horn is suitable to be used both outdoors and indoors.
Multitone Horns
A so-called multitone type horn can be programmed to produce a continuous
horn, a code-3 tone, a code-3 horn, a slow whoop, a and many other
types of horn alarm sounds. This lram horn can be fixed to an outdoor
box or can be flush mounted to an indoor wall. The tones are produced
by using a special horn and produces a typical high pitched chirping
sound. Many horns nowadays sound like these fire alarm horn strobes.
What are Piezo Horns?
Piezo horns are constructed to produce a high pitched sound, a sound
very similar to that of a home fire and smoke alarm. This type of
fire horn is most often used in smaller rooms and houses. These do
not produce as loud a sound as regular horns. A common piezo horn
will produce approximately 70 to 80 decibels. This is not too loud
to use type of system in the home. In addition pop-out fire strobes
can be placed in the property.
The primary advantage of having a building fitted with a fire alarm
strobe is increased security and safety and the possibility to place
alarms and bells exactly where needed. Apparently the reason why most
people buy a fire horn is that they wanted a burglar alarm system
and the cost of adding fire alarm features to an indoor burglary system
is relatively small.
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