Yeah they are mains powered with battery backup . I wish ( knew ! ) I should have put a data cable through …
No chance of data cables through now - still as long as it works , sparky will be moderately happy .
Finally got round to purchasing
I was annoyed that the aico RF ones are rf as long as you buy the additional rf module . Slightly misleading in my opinion .
As I need 5 smoke and 1 heat that bumps the price a lot .
So went with safe-tech .
£350 inc vat .
To save more cash ( after 11 yrs I decided I need to budget ) . I’ll wire them all in - stick a plug on the end . Pair / test the lot . Sparky at a later date will roll his eyes but just has to do a connection in the CU .
We have 2 of these similar size and weight . Company stated they would crane them in ( need to go underground so an extra complication ) . On install day they moved them by hand with a lot of manpower . I indicated how (expletive deleted)ing ridiculous it was and left them too it .
It’s dull . Say 25% of max . Doesn’t always do it though . I believe capacitor can be fitted at the switch . Neutral to earth ( or something like that …. )