Huge coughed up some electrons that declared:
We have an integral garage, under our bedroom. The ceiling is Building
> Regs compliant (or rather, it is now...). There's a smoke detector
> in there, but I'd like a detector with a remote sounder, or some way of
> raising an alarm in the body of the house.
>
> Suggestions?
>
A pair of radio interlinked ones (eg Aico) any good?