Re: WTB harsh envir motion

["Robert L Bass" <no-sales-spam@bassburglaralarms>]

> In this area there aren't many basements. I don't
> understand how an intruder would gain entry. Are
> the basements totally underground or are the small
> windows slightly above ground level that would
> allow unwanted access?

We don't have many basements in South Florida
either.  If you had one it would just fill up with
alligators anyway.  :^)

All kidding aside, where I worked in Connecticut
for many years almost every home and business
has a basement.  Most have small casement type
windows.  They're large enough for an average
adult to gain entrance.

In recent years builders have been using cheap,
snap-in windows for basements.  The entire
window can be removed by pushing up on two
small spring clips.  Unfortunately, the springs
are so weak that it's often possible to remove the
window from the frame by simply pushing on the
upper stile.

Because these windows are so flimsy and because
of the way they're held in place, installing standard
magnetic contact sensors can be problematic.  One
alternative is to use a device from GE Security
called a BB1-GS "Barrier Bar".  This is a square
vinyl shaft that looks from the outside like a burglar
bar.  It is actually a poressure sensitive switch held
in place by the spring-loaded "bar."  Any attempt to
dislodge the window or enter through it will pop the
bar loose, triggering the alarm.

Some companies like to use alarm screens which
can be made to precisely fit the window opening.
When using an alarm screen the window
manufacturer supplied half-screen is discarded.

Both screens and Barrier Bars have the added
advantage over magnetic contacts that they can
protect the window while it's open.  In a damp
basement this can be a significant feature for
the homeowner.  If you run into this situation you
might want to discuss these options with the
customer.

> In any case an outdoor motion like the Bosch
> OD 850 (available at ADI) might work.

Though I've used more of the Visonic, Crow and
Paradox detectors, I've sold a fair number of the
Bosch OD850 and they've been at least as good.
I have details on them at the following URL:
http://www.bassburglaralarms.com/bosch_od850-f1_outdoor_detector_12150_prd1.htm

--

Regards,
Robert L Bass

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