Window Bugs

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I just moved into a fairly new home where the Alarm System was not
completely installed. I finished the door contacts and Motion Sensors and
then found a box containing Window Bug glass break sensors. I am looking for
assistance on where to mount these devices. Some say on the windows
themselves, others have said on the window frame as it detects the audio
frequency of breaking glass within 10 feet of it.  What is the best
solution?

Thanks, Dan



Re: Window Bugs
Dan wrote:
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There's a picture of one installed here:
http://www.smarthome.com/7435wb.html

Re: Window Bugs
Actually I saw that picture as I have bought X10 stuff from them before. It
did not show if that window was a fixed window or opens. Looks like the
right solution is to attach it to the glass and not proximity.

Thanks Matt

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Re: Window Bugs
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One must be afixed to each seperate pane of glass for which detection is
required.  For an opening pane you can use a curly cord or a takeoff.  Curly
cords have few false alarms, but look hokey.  Take offs look better, but may
have false alarms over time.


--
Bob La Londe
Fishing Arizona & The Colorado River
Fishing Forums & Contests
http://www.YumaBassMan.com



--
Posted via a free Usenet account from http://www.teranews.com


Re: Window Bugs
You could look at the DS1100 series glass breaks.

--
Careful with that axe, Eugene

Re: Window Bugs
You could use lithium battery powered glass/shock detectors if you had
to...but wood/metal mullions in the windows makes any of those kinda gbs
pretty iffy. Go with acoustic gbs as was discussed in a branch of this
thread.


| Not sure how old they were, found them in a box in the house I bought. I
| still have not decided what to use in their place, but their history!. The
| windows are hardwired with only one pair, so a powered device is out
unless
| I run a separate supply cable to an outlet. Many have made suggestions,
but
| all are powered devices, so I need two pair wiring. This house has no
| basement or attic, so adding wires is not an option. I can add wireless,
but
| I am trying to be cost effective (Cheap) and use existing equipment.
|
| Dan
|
| >
| >> >
| >> > There's a picture of one installed here:
| >> > http://www.smarthome.com/7435wb.html
| >>
| >> Eeewwww!
| >> js
| >
| > I didn't realize those were even still available. I guess the
| > manufacturers
| > sold them off to the internet resellers, because I don't any pros that
| > would
| > still use them with a clear conscience. Note to the original poster,
don't
| > use these unless you enjoy visits from your local PD on a regular basis.
| >
| >
| >
|
|



Re: Window Bugs
The only way I've ever seen one of those work was if the glass it was stuck
to happened to fall out allowing the bug to fall upside down. They are such
crap...and they used to be fraudlently advertised as well.


| > Dan wrote:
| >> I just moved into a fairly new home where the Alarm System was not
| >> completely installed. I finished the door contacts and Motion Sensors
and
| >> then found a box containing Window Bug glass break sensors. I am
looking
| >> for
| >> assistance on where to mount these devices. Some say on the windows
| >> themselves, others have said on the window frame as it detects the
audio
| >> frequency of breaking glass within 10 feet of it.  What is the best
| >> solution?
| >>
| >> Thanks, Dan
| >
| > There's a picture of one installed here:
| > http://www.smarthome.com/7435wb.html
|
| Eeewwww!
| js
|
|



Re: Window Bugs

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See the #714 by United Security Products
http://www.unitedsecurity.com/supervise.htm



Re: Window Bugs
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Eeewwww!
js



Re: Window Bugs
What a remarkably incorrect description of how they function....listens for
vibration my ass... We used to call them Joke Detectors way back when....

--
When at last you do succeed, never try again...

Re: Window Bugs

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I didn't realize those were even still available. I guess the manufacturers
sold them off to the internet resellers, because I don't any pros that would
still use them with a clear conscience. Note to the original poster, don't
use these unless you enjoy visits from your local PD on a regular basis.




Re: Window Bugs
Not sure how old they were, found them in a box in the house I bought. I
still have not decided what to use in their place, but their history!. The
windows are hardwired with only one pair, so a powered device is out unless
I run a separate supply cable to an outlet. Many have made suggestions, but
all are powered devices, so I need two pair wiring. This house has no
basement or attic, so adding wires is not an option. I can add wireless, but
I am trying to be cost effective (Cheap) and use existing equipment.

Dan

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Re: Window Bugs

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LOOK HERE:
http://www.alarmsuperstore.com/contacts/foil.htm



Re: Window Bugs

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You put them right on the glass.  They're only good for fixed pane
glass, and a pulse stretcher is required at the panel (or program the
zone for a fast loop response).

-G


Re: Window Bugs
Dan said:

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I would recommend installing them in your trash can.


Re: Window Bugs
I guess I will use them on the fixed glass as "G" suggest in the previous
post and use a different contact device for the windows that open.

Thanks all for the responses, I appreciate it.
Dan

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Re: Window Bugs
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Actually, the above is correct.  Those are about the most unreliable,
false alarm prone detectors ever to grace the alarm industry.  If
they're the ones I think (similar to the image another poster
suggested), they consist of a bent tube with a small globule of mercury
in it and a pair of electrodes at one end.  The sensor is supposed to
detect impact by disturbing the mercury which briefly either opens or
closes (depending on which way you turn the device) the circuit,
triggering the alarm.

There are several weaknesses to these devices.  For one, mercury has a
hefty expansion coefficient which causes the globule to become larger
or smaller during temperature changes.  This can cause the detector to
become over-sensitive (in the more common closed circuit mode) when the
glass cools down and, conversely, insensitive when it warms up.

Another problem is that windows can vibrate during wind and even when
large vehicles drive past.  Because the window bugs are sensitive to
vibration, non-alarm stimuli can trip them, especially when there's a
temperature drop.

Also, the sensors are easily "adjusted" by turning them on their base.
A single small screw holds the sensor head to the base.  It's very easy
to bump the detector, causing it to become over-sensitive or (perhaps
worse) insensitive to an actual break.

Due to the high incidence of false alarms and the ease with which they
can be tampered, these detectors have not been popular with installers
for quite a few years.  As the fellow using th alias, Nomen..." said,
toss them in the trash.

Regards,
Robert L Bass
Bass Home Electronics
The DIY Alarm & Home Automation Store
www.BassBurglarAlarms.com


Re: Window Bugs
I would seriously not use them. I have seen and personelly witnessed the
window bug brand detectors fail to properly operate. Loop set fast or pulse
stretcher used.
UL listed or not I will not use them and when i take over a system I advise
there removal and replacement with a more  reliable product.
Use the Window Bugs at your  own peril.




Re: Window Bugs
DITTO !!! What junk.
I can't tell ya how many I have removed over the years that had NO mercury
in the tubes.


| Dan said:
|
| >I just moved into a fairly new home where the Alarm System was not
| >completely installed. I finished the door contacts and Motion Sensors and
| >then found a box containing Window Bug glass break sensors. I am looking
for
| >assistance on where to mount these devices.
|
| I would recommend installing them in your trash can.
|



Re: Window Bugs
Thanks all for the responses, I will trash them and look for another
alternative. The city I live in requires us to have a permit before the
monitoring company can call the police for dispatch to an alarm. Three
falses, and your permit is suspended and a hefty renewal fee is applied, so
you experts say their trash, there gone! So, any good suggestions? Each
window that can be accessed from the ground, roof, or balcony has a wire to
it. Each room has its own wiring and terminates at the panel. I need to
cover each room and since the home is built, I am limited to where the
wiring is unless I go wireless, and I hate to do that since the rooms are
wired.

Thanks to all

Dan

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