Alarm- mystery sensor

[Aviz]

Anyone know what this is on my landing? . I thought it was an internal bell, but it appears to be wired in series with a PIR.



Cheers

Andy

[cpas]

Looks like a smoke alarm but don't know why it would be wired to a PIR - unless it's just wired to the contraol box that way!

[Simpo Two]

How come you have something in your house and don't know what it is?

If you have just bought the house, did you not ask the vendor 'WTF is that?'

[Aviz]

Simpo Two said:

How come you have something in your house and don't know what it is?

If you have just bought the house, did you not ask the vendor 'WTF is that?'

Just bought it as a repo. Not sure the royal bank of Scotland would know

[Simpo Two]

Ah well if you buy houses for £20K you can expect things like these

[Herbs]

It looks like a smoke alarm sensor with built in light - try burning something close to it and see what happens

[Aviz]

Simpo Two said:

Ah well if you buy houses for £20K you can expect things like these

I wish !!

[Aviz]

Herbs said:

It looks like a smoke alarm sensor with built in light - try burning something close to it and see what happens

Thanks ..

I'll give that a go tomorrow!

[Dogwatch]

Agreed it looks like a smoke detector - we had similar ones at the office. Hardly your average domestic smoke alarm though, hope it's not connected to an autodialler........

[Aviz]

Dogwatch said:

Agreed it looks like a smoke detector - we had similar ones at the office. Hardly your average domestic smoke alarm though, hope it's not connected to an autodialler........

Thanks for all the advice. After a bit of googling, it does appear to look very much like a smoke detector. I'm installing a new alarm, so I'll do some more digging tomorrow and test it by burning something. The limited zones on the old alarm must have meant them sharing the fire zones with the pir.

http://www.hisupplier.com/product-36387-Sonic-Safe...

Edited by Aviz on Tuesday 23 August 22:44

[Paulbav]

Aviz said:

Dogwatch said:

Agreed it looks like a smoke detector - we had similar ones at the office. Hardly your average domestic smoke alarm though, hope it's not connected to an autodialler........

Thanks for all the advice. After a bit of googling, it does appear to look very much like a smoke detector. I'm installing a new alarm, so I'll do some more digging tomorrow and test it by burning something. The limited zones on the old alarm must have meant them sharing the fire zones with the pir.

http://www.hisupplier.com/product-36387-Sonic-Safe...

Edited by Aviz on Tuesday 23 August 22:44

That would not be good as smoke detectors are meant to work 27/7 not only when the alarm is set.....

Paul (Alarm Man)

[Aviz]

Paulbav said:

That would not be good as smoke detectors are meant to work 27/7 not only when the alarm is set.....

Paul (Alarm Man)

Yes I agree. Maybe it was for when the house is empty. To alert the neighbours. There are also separate battery powered smoke alarms throughout. The new alarm panel I Am fitting has fire zones which are active 24/7.

I'll confirm my findings tomorrow as I'm not living in the house yet.

Thanks again for all the pointers everyone !

[Simpo Two]

Paulbav said:

That would not be good as smoke detectors are meant to work 27/7 not only when the alarm is set...

Which rightly warrants the reply 'Which planet are you on?'

[Laurel Green]

Simpo Two said:

Paulbav said:

That would not be good as smoke detectors are meant to work 27/7 not only when the alarm is set...

Which rightly warrants the reply 'Which planet are you on?'

Me thinks he slipped into invoice mode when typing that.