A question concerning alarm sensors

A question concerning alarm sensors

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A question concerning alarm sensors Old Dad Smith 06-23-2005
Posted by Old Dad Smith on June 23, 2005, 3:07 am
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I've posted a (suitably anonymous) plan of my ground floor showing my
uninformed choice of motion sensor locations 1-5 and a door contact at
6.

See http://tinyurl.com/bffpz

The blue dots are the sensors and the red lines are radiators.

Could any experts out there kindly tell me if I've made a good choice
of sensor location, please, or whether alternative positions would be
preferable. Have I got enough sensors?

Many thanks



Posted by SantaUK on June 23, 2005, 7:13 pm
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Right above a radiator will cause false alarms when the heating comes on.
Also you haven't got anything on the Patio doors - this is a common area for
attempted access. Might want to fit shock sensors on these, stop them
before they get in.

--
Regards

SantaUK
> I've posted a (suitably anonymous) plan of my ground floor showing my
> uninformed choice of motion sensor locations 1-5 and a door contact at
> 6.
>
> See http://tinyurl.com/bffpz
>
> The blue dots are the sensors and the red lines are radiators.
>
> Could any experts out there kindly tell me if I've made a good choice
> of sensor location, please, or whether alternative positions would be
> preferable. Have I got enough sensors?
>
> Many thanks
>




Posted by Old Dad Smith on June 23, 2005, 2:48 pm
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SantaUK wrote:
> Right above a radiator will cause false alarms when the heating comes on.
> Also you haven't got anything on the Patio doors - this is a common area for
> attempted access. Might want to fit shock sensors on these, stop them
> before they get in.
>

The Playroom and Lounge room have no dividing wall and are effectively
one room. Therefore, I am hoping that sensor 5 will cover the 30 ft.
distance to the patio doors and detect someone breaking the glass.

I intend to use combined PIR/microwave sensors top avoid radiators
triggering the alarm. Any good brands out there?



Posted by Andrew Gabriel on June 24, 2005, 2:46 pm
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>SantaUK wrote:
>> Right above a radiator will cause false alarms when the heating comes on.
>> Also you haven't got anything on the Patio doors - this is a common area for
>> attempted access. Might want to fit shock sensors on these, stop them
>> before they get in.
>>
>
>The Playroom and Lounge room have no dividing wall and are effectively
>one room. Therefore, I am hoping that sensor 5 will cover the 30 ft.
>distance to the patio doors and detect someone breaking the glass.
>
>I intend to use combined PIR/microwave sensors top avoid radiators
>triggering the alarm. Any good brands out there?

You might want to look at some notes I put together a while back:
http://groups-beta.google.com/group/uk.tech.electronic-security/msg/ac5f61bd5da0c158?dmode=source&hl=en

It's likely the actual products mentioned have been superceded by
now, but this should still give you some things to think about,
and which features you want and which you don't want.

--
Andrew Gabriel



Posted by BIG NIGE on June 23, 2005, 9:24 pm
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> I've posted a (suitably anonymous) plan of my ground floor showing my
> uninformed choice of motion sensor locations 1-5 and a door contact at
> 6.
>
> See http://tinyurl.com/bffpz
>
> The blue dots are the sensors and the red lines are radiators.
>
> Could any experts out there kindly tell me if I've made a good choice
> of sensor location, please, or whether alternative positions would be
> preferable. Have I got enough sensors?
>
> Many thanks
>
Is there a reason you have chosen not to cover the front hall.
There appears to be a partition between playroom & lounge room if this is
correct then there is no protection for the lounge,utility & shower rooms.

Because of the number of radiators in some rooms it is difficult to locate
sensors.

You use the word "sensors" (what "sensors" have you got in mind.)




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