Piezo High Intensity Mini Siren Warble Alarm
Painfully Loud 107 DB @ 12VDC, Operates 6-15V
Dimensions: About 2.25" x 1.5" x 1.75" (inches).
Warble / Siren Definition:
The pitch of the sound rises and falls linearly in a repeating pattern.
Although this is still a decent alarm, it is not the best
I can offer you anymore in this price range. Sadly, the
quality has been slipping of late on the above alarm
with most no longer producing their advertised sound.
So unless you are hooked on the style of the above
alarm, I urge you to consider my BEST alarm which
sells basically for the same price.
See it Immediately below here:
The Mini-Alarm Pictured Below is the Absolute *BEST*
we've found in our search for a Loud Durable Quality
Made Alarm. Obviously, this level of Quality IS NOT
a product of Typical Chinese Manufacturing. This little
Amazing Wonder was made in Taiwan.
---
Ok, if you're still reading here, It means you must be hooked
on the alarm style pictured at the top of this ad, so the rest of
that original ad is provided below:
One Customer's Feedback on Mar 05, 2013:
"Holy #%*%# this thing is LOUD. Very tiny, Great ! AAA+++"
BIG SOUND FROM SUCH A TINY UNIT!
Please Note:
The maximum advertised sound level will only
be produced at the maximum stated voltage
that this alarm is rated for. Lower operating
voltages will result in lower sound levels being
produced. This is true of all piezo alarms, not
just this one. Also, it should not be assumed
Another Customer had this to say on Sep 20, 2013 (He bought 27 of them):
"Absolutely Horrible Sound. I LOVE IT! Actually Painful. Good investment. Thanks"
WARNING:
Other manufacturers have tried to copy this siren, hence you will
find cheaper look-alikes of this alarm. I found during my search
for a quality alarm that none of the others matched the quality or
sound output of this brand. Also, all the fakes I tested varied
greatly in sound output from unit to unit, which means that most
of them didn't provide the advertised sound output. I also found
that as high as 5% of the fakes were defective when unboxed.
So for an Alarm That Will Work When You Really Need It To,
This Is The One You Want !!!
For Getting the Maximum Sound Out Of This Alarm,
You'll Need a Good 12V Power Adapter or Battery.
This is just a Sounder and requires a connection to a
voltage source. It does not have a built-in triggering
mechanism or automatic shut-off.
It can be used in your own home projects when used
with sensor switches or controls that connect it to a
6 to 15 volt external power supply ...or... It can also
be added to existing security systems that provide
connections for additional alarms. In such cases,
if the existing alarm system provides a Voltage
output for additional alarms, just connect it observing
the proper polarity. If the existing alarm system just
provides a relay contact closure, you will need to add
a 12 volt power supply in series with this alarm when
making the connection (observing proper polarities,
of course).
If purchasing more than 6 units, do not pay until you've asked
me to send you a new invoice for the Total. Often times I can
save you money on the shipping costs.
This is one of my most popular Alarms with many
customers coming back to buy more of them.
It's Super Intense High-Pitched 107 DB warble tone
easily makes it the most annoying alarm I've ever
heard, and I've heard quite a few other Piezo Alarms
that claimed a 100 db sound output. Even all the larger
alarms I've heard don't have such a painful way of
encouraging intruders to leave.
The sound it produces is kind of hard to describe as it
isn't exactly two tones, but actually warbles between
two dominant tones with the transition being quite rapid.
Thus, the sound output actually traverses a range of
frequencies between the two dominant tones.
It is this warble effect that actually makes this alarm
more demanding of attention from anyone within earshot,
and it's sound won't easily get buried among other loud
noises in the area (like may happen with other alarms).
It's Super Intense High-Pitched 107 DB warble tone
easily makes it the most annoying alarm I've ever
heard, and I've heard quite a few other Piezo Alarms
that claimed a 100 db sound output. Even all the larger
alarms I've heard don't have such a painful way of
encouraging intruders to leave.
The sound it produces is kind of hard to describe as it
isn't exactly two tones, but actually warbles between
two dominant tones with the transition being quite rapid.
Thus, the sound output actually traverses a range of
frequencies between the two dominant tones.
It is this warble effect that actually makes this alarm
more demanding of attention from anyone within earshot,
and it's sound won't easily get buried among other loud
noises in the area (like may happen with other alarms).
It has Red and Black 12 inch wire leads with Red
naturally being the Positive Lead. The documentation
on this alarm does not say whether it can be used
outdoors or not. So although it looks like it may be
weatherproof, I do not guarantee it's use outdoors.
Although this unit will operate with as little as 6 Volts,
it won't produce the full 110db of sound that it can
at 12 volts. It's a simple law of physics that it takes
more power to produce a Greater sound Output.
As you can see below from testing this alarm at
different voltages, the power at which this (and
all other alarms) operate varies greatly and is
determined by the voltage used to power the unit.
Obviously alarms will only produce the maximum
sound output they are designed to produce at the
maximum operating voltage they are designed to handle.
Here is the typical current draw measured at various
voltages and the calculated power consumption for
this device when operated at the those voltages:
voltages and the calculated power consumption for
this device when operated at the those voltages:
At 6 Volts: 66ma, .40 Watt
At 9 Volts: 110ma, .99 Watt
At 12 Volts: 155ma, 1.86 Watt
Be advised that the above figures are typical values
and the unit you receive may vary as much as 10 to
15 percent from the values I measured above. This
should be expected, and considered normal. However,
this variation is very unlikely to ever present a problem
for anyone.
Please Note:
The maximum advertised sound level will only
be produced at the maximum stated voltage
that this alarm is rated for. Lower operating
voltages will result in lower sound levels being
produced. This is true of all piezo alarms, not
just this one. Also, it should not be assumed
that the volume of sound produced by this
Mini-Alarm will equal that of a Full Size Alarm
capable of being heard several blocks away.
An alarm having a much larger diaphragm
being driven with considerably more power
is required for sound to carry great distances!
It is just the Laws of Physics at Work Here.
Usage Considerations:
Since this is a Mini Alarm having Low Power
Requirements and a Small Diaphragm, this
alarm may not be suitable for outdoor use
where a large coverage area is desired or
the sound needs to carry great distances.
NOTE:
To get combined shipping, you must request a
new invoice from me and use the link provided in
the new invoice to send your PayPal Payment from.
new invoice from me and use the link provided in
the new invoice to send your PayPal Payment from.