Aico EI141RC Mains Ionisation Smoke Alarm with 9V Battery Back-up

I bought this alarm to replace the same model that was installed when I moved into the house - almost 15 years ago. The old one was working just fine and never had any problems. However, it's generally recommended to replace mains smoke alarms within 10 years of installation. The new alarm slides easily onto the existing head, with the help of a screwdriver to press down the retaining button.I also bought the Aico Optical alarm at the same time - It's advised to fit both optical and ionisation type alarms in the same property. This again is a standard fit to the Aico head that was already fitted, so another really easy upgrade. The two alarms sound together if one is triggered.All works well so far and hopefully, based on past experience, will be trouble free for the duration of its service.

Incredibly easy to fit, and they work perfectly straight out of the box. These are a direct replacement for the EI141 interconnected alarms -- our two had a 'replace by Jan 2017' sticker on them so we bought these hoping it was a straightforward swap, and it was. You need a flat-head screwdriver to unclip the existing alarm 'head' and the base stays fixed to the ceiling. Slide it away from the side where you've unclipped it with the screwdriver, then just slide the new head into place until it clicks. The interconnection worked without any configuring or setting required.One thing that it doesn't seem to mention in the listing, but is worth knowing, is that it comes with a 9v Duracell battery already installed, so don't do what I did and buy those separately -- you don't need them!

Generally I think it's well made and a good buy, my main complaint so far is that the 4 core cable required to fit it isn't generally available in your domestic DIY stores, you have to visit more specialist ones. The way the device goes together is nice, the connectors are solid. I would comment the plastic is a touch brittle where it clips the two halves together.This unit was intended to add an alarm to my house, in practice it replaced one, a clip broke off when changing the battery. Once this has happened they don't sit correctly in the removable mount. This is a cheap and nasty bit of design that could have been done much better, it lets the whole unit down. To be fair, if care is taken it is perfectly fit for purpose though and I'd probably opt for one of these rather than try an unknown type. Just be gentle... it's delicate.

Had to replace my old smoke alarms and these were the ones I bought, easy to install, instructions come with them, and they do the Job well.

Bought 2 of these to replace the same model that were fitted in the house when built - as they are now 15 years old and had yellowed (shown up somewhat by newly painted ceilings!). The old ones were still working fine, proven frequently when anything thicker than normal went in the toaster, but as these things should be replaced, it was high time.Plenty of screw holes in the base makes fitting a doddle - although I stuck with the original ones and just re-attached into the existing plugs in the ceiling. Cable routing is simplicity itself, with live, neutral and inter-connect terminals in the main connection block and the chassis earth nearby. With the power back on, both units gave a green light for mains feed, and the test button confirmed that the inter-connect circuit was functional. 2 new smoke detectors fitted & working in under 30 mins.All-in-all a quality product that is easy to fit. Free back-up batteries included too.

This was an exact replacement for 12 old model. Everything fitted perfectly and the job was done in less than 10 minutes. It's one of those items you don't want to go off but it's nice to know it's there. Backed up by a battery if you lose mains power which must be in place or it will not allow you to fit the alarm on it's base plate. All tests worked fine. Silent mode is possible if you are using the grill?. Life of unit now extended to 2023. Very pleased.

Purchased this hard-wired smoke alarm as a like-for-like replacement for one that was near the end of its life and showing the signs of old age. It comes as a whole unit - mounting plate, detector, back-up battery. It comes with instructions with how to install the whole set-up and to replace the detector. It is straight forward to replace and to test it to check it works - I personally did not replace this myself as it turns out I am not tall enough to reach my ceiling unless I fancied an accident with a step-ladder but I did witness my friend set it up for me and it took him about two minutes once he had read and understood the instructions. However, if you are in doubt about setting this yourself, do get a electrician in to look at it for you - it is never too expensive to ensure your home is protected in the event of a fire. Would I have purchased this particular make and model if I did not already have the fixings in place for this? Difficult to say, but a smoke alarm is a must for your home at the end of the day. It's good to have some peace of mind for the next 10 or so years (and some quiet from the new battery!)

This controls the three Aico units that I have installed in my household. I replaced the original one I had installed as it was time expired. The life of these units is 10 years according to the attached label.A word of warning though. They are sensitive and do their job.