I bought a couple of linked detectors from an alarm specialist shop in
Middleton about £ 20 each. Fitted one in shed the other top of landing and
connected both to 24 hr loop on house alarm. apart from the landing one
telling me occasionaly that the bacon is ready on a Saturday morning they've
been no trouble at all. I test twice a year with a smoking candle, NB I also
added magnetic door switch on shed to 24hr loop and that used to go off in
high winds untill I added an extra shed door twist thing ( don't know what
you call 'em, bar of metal; with hole in middle, screw to shed half
overlapping door ) near the bottom of the door. These have 5 connections
each, ground,+12v,link to next one,and a pair of normally closed contacts
for a 24hr loop.

there must be similar readily available if you check out alarm suppliers.

--
Pete Cross

"Christian McArdle" wrote in message
. net...
Once she finds that we can have protection without the tripping
then the next stage of detectors upstairs can be carried out.

The upstairs ones are more important anyway. They are closer to the
bedrooms, so will be heard at night. Smoke rises, so in a real fire, they
might even activate earlier than the downstairs ones, even in a downstairs
fire.

Christian.

P.S. the beeping of the hush feature must be the most annoying thing ever.
Why would I want a 3000dB beep every five seconds to remind me not to set
fire to myself, whilst the alarm is in hush mode? It just encourages
people
to remove batteries instead.