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Window sensors

Just a quick question. I have my windows sensored so if someone lifts
the bottom window the zone is tripped. What prevents someone from
pulling the top window down to gain entry and bypassing the sensor?
 
C

Crash Gordon®

Jan 1, 1970
0
Nothing...that's why both sides of a double hung window should be contacted.
 
hmmm. I wish the alarm contracotor had thought of that when he ran the
wires...is there anything I can do at this point to close the loop in
that hole...
 
M

mikey

Jan 1, 1970
0
A length of appropriate size dowel might do the trick.
 
C

Crash Gordon®

Jan 1, 1970
0
Depends on how good you are at fishing wires up to the top of window from the existing contact...not an easy task!

If the layout of the home allows...maybe add more motion detectors...except you cant use them at night if they are in an area you may want to walk through.

....screw the tops closed with removable pins/screws?
 
M

Mike Cooper

Jan 1, 1970
0
Crash said:
Depends on how good you are at fishing wires up to the top of window from the existing contact...not an easy task!

If the layout of the home allows...maybe add more motion detectors...except you cant use them at night if they are in an area you may want to walk through.

...screw the tops closed with removable pins/screws?

Probably not an attractive option to use wireless transmitters seeing
how your windows have already been wired, but one method I've seen used
(for those who might see double-hung windows as a real pain) is to
attach the transmitter to the bottom half, and the magnet to the top
half, at that midway point where the two halves are up against each
other. You might have to use a shallow magnet if you don't have
sufficient clearance between the two halves, so that opening the bottom
window won't bump the magnet or knock it off completely.
 
S

Stanley Barthfarkle

Jan 1, 1970
0
Many newer windows come completely out of the frame, and often the frame
inside tracks are removable, which will allow you to run wires behind the
side tracks. You might also fish the hollow spaces in the sides of the
window frame with a length of pull-chain (buy it in any length at the
hardware store) and a 1/4 dia. magnet taped to a coat hanger.

If the windows have an unfinished attic above them, you could use a 3/8" x 4
or 6 foot d'versibit to drill into the attic and pull wires down. Either
way, it would have been easier for the contractor to do it right the first
time.
 
C

Crash Gordon®

Jan 1, 1970
0
Personally I cringe when I see moving transmitters...dunno why some guys put the transmitter on the moving part of the door/window anyway.
 
J

Jim

Jan 1, 1970
0
Just a quick question. I have my windows sensored so if someone lifts
the bottom window the zone is tripped. What prevents someone from
pulling the top window down to gain entry and bypassing the sensor?

The answer is probably the last thing you'd want to do.

Remove the molding from the side of the window that the present contact
is on. Cut one leg of the pair of wires that are presently there and
splice a pair of wires into the existing wire, extending it to a
contact mounted at the top of the window. I'm presuming that you DO
have molding. If not, there are ways to do what I described above, but
it gets a little messier possibly requiring some spackling and paint.

As a homeowner, it's good to see that you're concerned about things
such as this. It was done as a short cut by the original installer. And
as far as most reliable installers will tell you, it's not an
acceptable procedure.

We have another person in this Newsgroup who doesn't recommend that the
tops of double hung windows be protected. He sells equipment to DIY'ers
and doesn't want the installations to get too difficult, so he tells
his victims that it's not important to do the tops of double hung
windows. You'll just have to ignore him. We do.
 
N

no wires showing

Jan 1, 1970
0
Double hung windows have tops? Golly gee willackers Ime allwaze lurnun
noo stuff heer. Figgurd this noosgroop wuz good fer sumthin.
 
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