Re:Smoke Alarm

["kw1816" <kw1816@xxxxxxxxxxx>]

Is =A320 really too expensive for a smoke alarm ??
http://www.tlc-direct.co.uk/Products/TLSD12.html

That's what I've got connected to my Comfort alarm.

Kevin W.


--- In ukha_d@xxxxxxx, "JonS" <semi.jon@...> wrote:
>
> I spent ages looking into smoke alarms and in the end went for a=20
9V Ei
> interlinkable set of heat and smoke alarms.  The link is any old=20
twin core
> conductor.  The cable you have found looks like the pukka fire=20
protected
> stuff for commercial premises etc.  If you want that, go for it,=20
but I
> didn't feel that level of protection in my house, if the cable has=20
burnt
> through before we get out then we're in big trouble :-/
>=20
> Another thing I found with commercial stuff was that the detectors=20
didn't
> contain sounders, so more wall/ceiling rash plus more expense.
>=20
> I was put off the 12V Ei interlinkable alarms that I could have=20
powered
> direct from Idranet as they were about 50% more expensive that the=20
9V
> version with a 10yr battery.  The only disadvantage of this is=20
that the link
> is not a volt-free contact but a 6-9V signal.  Opto-isolator or=20
relay
> required to do the link into idranet.
>=20
>=20=20
>=20
> HTH, but note I haven't fitted them yet!
>=20
>=20=20
>=20
> Jon
>=20
>=20
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> 09:22
>=20
>=20
>=20
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> 17:55
>=20=20
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>=20
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>