Twin Pack Kidde Firex KF20 Mains Powered Optical Smoke Alarm with 9V Back Up Batteries | KF2 | 4973

Good smoke alarm easy to fit and batteries included.

Straightforward replacement for earlier Kidde alarms, simple twist and click mounting. I opted to replace the backplates too as the old ones had yellowed.

Good price for two, easy to replace the old existing detectors , who knew they are supposed to be renewed every ten years

I was a bit concerned about "faulty" being written on one of the boxes.However, all the parts were in the box and connected easily to existing wiring.Tested interlink with no issues and look forward to years of protection.For new installation you will need a qualified electrician.

Easy to fit, although I also changed the base because the old one had gone yellow, and it tests fine. I have yet to see if it works with an actual fire.

I replaced out of date sensors from the same make. Easy and straightforward.

Purchased to replace existing smoke alarms. Slightly smaller than my previous alarms and very well priced. Alarm volume is loud as expected and I expect the lifespan to be a long one.

Great pair of smoke optical smoke detectors. Easy to fit as as always quick delivery from amazon. Recommended.

Arrivato nei tempi previsti.

Einfache Installation, ordentliche Qualität

da der Anschlußstecker über das Gehäuse herausragt. Somit Dose oder extra Loch nötig. Funktioniert auch nur mit Stützbatterie, nicht ausschließlich mit 220V. Wegen dieser extra Bastelei gibt es Punktabzug.