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Aico Ei146E Easi-fit Optical Smoke Alarm 230V + 9V Alkaline Battery Back-up

4.9 (221 reviews)
SKU: 240302142423006 EAN: 5099383010206

Compare 2 prices for Aico Ei146E Easi-fit Optical Smoke Alarm 230V + 9V Alkaline Battery Back-up — from £25.55 to £26.99 across 2 UK sellers including Electricals Online, Screwfix. Save up to £1.44 (5%).

£25.55 16h ago
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Compare Prices from 2 Sellers

Prices updated 19 Apr 2026
2
Screwfix
£26.99 +£1.44
3h
#2 Screwfix
3h ago
£26.99 +£1.44
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• Optical sensor more responsive to smouldering fires (sofas, TV''s) • Easi-fit base • Mains powered with 9V alkaline battery back-up • RadioLINK base Ei168RC (code 28480) provides wireless interconnection with simple installation • Fit in : lounge, dining room, hallways • Low battery warning • Test/silence button • Fit in : lounge, dining room, hallways BS EN 14604:2005 KM 552831 This alarm conforms to the latest British Standards, but further intervention may be required to wake sleeping children. These products fully comply with UK (UKCA) and EU (CE) regulations. All homes in Scotland are now required by law to have ceiling-mounted and interlinked fire alarms. This new legislation applies to heat and smoke alarms. The law places the onus on the homeowner and/or landlord to make these changes – contact your local fire prevention officer for advice or consult the Government website. This alarm must be used with (code 28480) to fully comply with new Scottish legislation. EI146E replaces previous model EI146RC. This is also a suitable replacement for the Aico EI141RC
Brand Aico
Colour White
Features Battery Backup
Item Diameter 14.8 cm
Item Weight 345 g
Item Width 14.8 cm
Model Aico EI146E
MPN EI146E
Number of Batteries 1
Power Source Battery, Hardwired
Type Smoke Detector
No features listed
No items listed

Customer Reviews 221

4.9
221 reviews
5 star
198
4 star
18
3 star
3
2 star
1
1 star
1
Great Replacement
5.0
February 26, 2026
1e595527-2668-5e2a-b289-d89fe0656284 Verified Purchase

Didn't realise Smoke Detectors have to be replaced every 10 years or so .The ones fitted have been replaced by this one & with the easy fit base it was a 5 minute job ...Great price as well .

Fantastic product
5.0
February 21, 2026
Arewethereyet Verified Purchase

UK built and with customer support that is second to none! Fantastic service and product. I’ve used them for years.

Easy to install
5.0
February 11, 2026
Stephen Ar Verified Purchase

The ei146 smoke alarm is easy to install as it fits into the previous W=Ei140 base. I also liked the dust cover which would be useful in a new build where dust could into the sensor whilst the unit was stored before installing.

Good product
5.0
February 9, 2026
016563b6-7ec4-5450-aeb9-291b89b4e527 Verified Purchase

Easy retro fit to older model back plate made instal a matter of moments solid item fair price

Goog quality
5.0
January 27, 2026
CapAl Verified Purchase

Good quality and easy to install with clear instructions.

Updated alarms
5.0
January 22, 2026
Desmonnd Verified Purchase

My ionising alarms had expired and seeing as they are being phased out if not banned already, I went for the optical ones. Easy to fit to existing wiring, and the body clicked together no problem. 9v battery included too! No more false alarms from cooking in the kitchen :-) Should be good for another ten years. Maybe not as loud as the old alarm but loud enough.

Replacement smoke detector
5.0
January 21, 2026
7239c217-d381-5de1-a9f9-f96a1d11fc63 Verified Purchase

This was to replace my existing smoke detectors which an electrical survey found to be out of date. Replacement was straightforward and we only needed the top half of each unit, there was no need to replace the base.

Smoke alarm
5.0
January 14, 2026
852f5658-7d35-5375-bdd0-2243e1f77291 Verified Purchase

Neat item which was very quick and easy to install.

Great product
5.0
December 17, 2025
5f6c3db4-4602-586f-95be-027985c89aa2 Verified Purchase

Good quality product. Really easy to fit and set up

Just the job
5.0
December 5, 2025
JRL80 Verified Purchase

Replaced an old Kidde Fire smoke alarm with this smoke alarm.Easy to fit no issues.I generally use Aico products as they are reliable.

Aico Ei146E smoke detector
5.0
November 24, 2025
AGNP Verified Purchase

Aico are renowned for good gear.Ive fitted loads over the years with no issues.
This unit was really easy to fit.
It also felt robust
Definitely recommend.

very easy to fit.
5.0
November 22, 2025
ae417c0kd3axdsopwfxmwidx5 Verified Purchase

Easy to fit, replacing a model bought in 2013, fitted original mains mount.

Works as it should.
5.0
November 17, 2025
c0244ad8-ac04-5655-8f5f-02c3d42b9ced Verified Purchase

Replaced 2 expired ones and the new ones are silent as they should, until they will be loud as they should.

Super easy to install and peace of mind
5.0
November 16, 2025
ian grey Verified Purchase

The smoke alarm easy super easy to install and gives peace of mind

Easy fit replacement
5.0
November 9, 2025
Fipflop Verified Purchase

Had the Ei146rc model that failed. This was just a. Easy fit replacement
Took all of 30 seconds to complete the exchange.

Perfect fit for existing base.
5.0
November 6, 2025
Gus Bonsu Verified Purchase

Perfect fit for the existing base. Working as expected

Recommended
5.0
October 27, 2025
DIYerExtraordinaire Verified Purchase

Recommended by my electrician, this was simple to install with a nice long expiry date.

Easy fit replacement
5.0
September 24, 2025
Hilsea1957 Verified Purchase

Easy upgrade to replace discontinued existing alarm. Power off, remove old unit and slide this one on. Power back on to check operation and that's it.

Good and reliable
5.0
September 18, 2025
Did Verified Purchase

Simply a good and reliable product that's easy to install.... thoroughly recommended

Great replacement smoke alarm
5.0
September 3, 2025
6e3be19c-da38-50ce-b7c2-8f203cc76a15 Verified Purchase

Bought the Aico Ei146E to replace an earlier model i akready hsd fitted. This alarm fits on the original base without having to do any new wiring.

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