wrote in message ...
I'm aiming to buy quite a few smoke (and probably heat) alarms in the
coming week or so. These are for a duplex flat and for our house.

It's very difficult looking at web pages of suppliers to work out which
ranges are compatible regarding interconnection etc. The Screwfix web
site (and catalogue) are hopeless on this front. TLC is better but
still not perfect.

I am sure that you cannot interconnect different makes of smoke alarms.

Adam