Mains Smoke Alarm
FailThe top 5 brands take 100% of clicks, so Mains Smoke Alarm is a Fail.
- Flapen Score
- 34 / 100Ranks 2,121 of 2,225 DIY & Tools niches · −15 vs the category median of 4934
- Market size
- £81K/yr102K searches / yr
- 90-day growth
- -17.0%search demand this quarter
- Competition
- 95%top-5 click share · 4 brands · 20 sellers
Flapen Score
Mains Smoke Alarm against its category
The dotted line is the DIY & Tools average. Past it, Mains Smoke Alarm is stronger. Inside it, weaker.
Market
The Mains Smoke Alarm market on Amazon at a glance
Shoppers on Amazon United Kingdom searched for Mains Smoke Alarm 102K times last year and spent an estimated £81K. All 4 brands take every click. Flapen scores it 34 out of 100, a Fail.
01 · Demand
An estimated 3.6% of those searches ended in a purchase.
Shoppers searched for this 102K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 3.6% of those searches ended in a purchase. Searches in the last 90 days moved -17.0% against the 90 days before. Searches, conversion and average price together put the market at an estimated £81K a year.
- Searches, last 12 months
- 102K
- Growth, 90 days vs prior 90
- -17.0%
- Conversion, latest week
- 3.6%
- Market size, estimated
- £81Ka year
- Peak month
- September1.7× the quietest month
- Top search term
- mains smoke alarm23K searches a year
02 · Price
A sale here is worth £21.79.
Listings sell for £21.79 on average, from £12.74 to £47.24. Amazon reports units sold in ranges. This niche sold 6K to 8K a year. The average listing sells 500 to 750 of them. At £21.79 that is £11K to £16K a year per listing.
- Average price
- £21.79inside the $15 to $100 sweet spot
- Price range
- £12.74–£47.24
- Amazon United Kingdom median price
- £12.12across 27,606 niches
- Units sold a year
- 6K–8K
- Units per listing a year
- 500–750
- Revenue per listing a year
- £11K–£16K
- Returns
- 2.5%of orders · Amazon United Kingdom median 0.6%
03 · Entry bar
The bar here is low.
57% of listings pay for placement with sponsored ads. 86% ship with Prime. On an average day, 37.7% of listings are out of stock. The average listing ranks #39 within Safety & Security. It carries 738 reviews at 4.47 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 57%
- Prime listings
- 86%
- Out of stock, average day
- 37.7%
- Average rank
- #39in Safety & Security
- Average rating
- 4.47 starsAmazon United Kingdom average 4.36 stars
- Average reviews
- 738per listing
- Listings tracked
- 7
04 · Newcomers
2 of last year's 3 launches cleared the first-year sales bar.
3 products launched here in the last 12 months. 2 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 56 months on average, so the names here are settling in.
- Launched, last 12 months
- 3
- Successful launches
- 2Amazon's first-year sales bar
- Average brand age
- 56 months
Products
Top Mains Smoke Alarm products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 22, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
FireAngel SW1-R Mains Smoke Alarm for Home Interlinked Hard Wired Smoke Alarms for Home with Backup Battery Test Button and LED Indicators 1-Pack
- Price
- £13.48
- Rating
- 4.5/5
- Reviews
- 2,069
- Age
- 7y ago

BLACK+DECKER Mains Smoke Alarm. Mains Powered Smoke Detector Interlinked Wired with Battery Back Up. Optical Smoke Alarm for Home with FAST FIX Easy Install Base and Test Button. White
- Price
- £12.74
- Rating
- 4.4/5
- Reviews
- 72
- Age
- 8mo ago

Twin Pack Kidde Firex KF20 Mains Powered Optical Smoke Alarm with 9V Back Up Batteries | KF2 | 4973
- Price
- £30.57
- Rating
- 4.6/5
- Reviews
- 962
- Age
- 12y ago

Kidde Firex KF20 Optical Smoke Alarm - Mains Operated with Battery Back Up
- Price
- £16.82
- Rating
- 4.6/5
- Reviews
- 1,571
- Age
- 14y ago

BLACK+DECKER Smoke Alarm 2 Pack. 10 Year Lithium Battery Included Smoke Alarm for Home. Easy To Install Optical Smoke Detector Fire Alarm. With Test/Silence Button. White.
- Price
- £16.98
- Rating
- 4.4/5
- Reviews
- 176
- Age
- 8mo ago
Trending
estimated 90-day click momentum
BLACK+DECKER Mains Smoke Alarm. Mains Powered Smoke Detector Interlinked Wired with Battery Back Up. Optical Smoke Alarm for Home with FAST FIX Easy Install Base and Test Button. White
- Price
- £12.74
- Rating
- 4.4/5
- Reviews
- 72
- Age
- 8mo ago

BLACK+DECKER CONNECTED Smoke Alarm. Wireless Interlinked 10 Year Lithium Battery Smoke Alarm for Home. Easy Install Optical Smoke Detector Fire Alarm. With Test/Silence Button. White.
- Price
- £14.70
- Rating
- 4.2/5
- Reviews
- 41
- Age
- 8mo ago

BLACK+DECKER Smoke Alarm 2 Pack. 10 Year Lithium Battery Included Smoke Alarm for Home. Easy To Install Optical Smoke Detector Fire Alarm. With Test/Silence Button. White.
- Price
- £16.98
- Rating
- 4.4/5
- Reviews
- 176
- Age
- 8mo ago

Aico EI146e Set of 2 Mains Hard Wired Smoke Alarms with 9V Battery Back Up White
- Price
- £47.24
- Rating
- 4.6/5
- Reviews
- 274
- Age
- 11y ago

Kidde Firex KF20 Optical Smoke Alarm - Mains Operated with Battery Back Up
- Price
- £16.82
- Rating
- 4.6/5
- Reviews
- 1,571
- Age
- 14y ago
Newest
by launch date
BLACK+DECKER Mains Smoke Alarm. Mains Powered Smoke Detector Interlinked Wired with Battery Back Up. Optical Smoke Alarm for Home with FAST FIX Easy Install Base and Test Button. White
- Price
- £12.74
- Rating
- 4.4/5
- Reviews
- 72
- Age
- 8mo ago

BLACK+DECKER Smoke Alarm 2 Pack. 10 Year Lithium Battery Included Smoke Alarm for Home. Easy To Install Optical Smoke Detector Fire Alarm. With Test/Silence Button. White.
- Price
- £16.98
- Rating
- 4.4/5
- Reviews
- 176
- Age
- 8mo ago

BLACK+DECKER CONNECTED Smoke Alarm. Wireless Interlinked 10 Year Lithium Battery Smoke Alarm for Home. Easy Install Optical Smoke Detector Fire Alarm. With Test/Silence Button. White.
- Price
- £14.70
- Rating
- 4.2/5
- Reviews
- 41
- Age
- 8mo ago

FireAngel SW1-R Mains Smoke Alarm for Home Interlinked Hard Wired Smoke Alarms for Home with Backup Battery Test Button and LED Indicators 1-Pack
- Price
- £13.48
- Rating
- 4.5/5
- Reviews
- 2,069
- Age
- 7y ago

Aico EI146e Set of 2 Mains Hard Wired Smoke Alarms with 9V Battery Back Up White
- Price
- £47.24
- Rating
- 4.6/5
- Reviews
- 274
- Age
- 11y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 95% of clicks. A locked shelf that new listings rarely crack.
Brands
4 falling
Sellers
20
Est. top-5 brand share
100%
Top 20: 100%
Est. top-5 click share
95%
Top 20: 100%
Open market
0%
- Fireangel40%
- BLACK+DECKER37%
- Kidde21%
- Aico2%
Demand
Mains Smoke Alarm search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.7×
Search terms
Top Mains Smoke Alarm search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- mains smoke alarm23K/yr
- wired smoke alarms for home15K/yr
- wired smoke alarm10K/yr
- hard wired smoke alarms for home4K/yr
- mains power smoke alarms for home4K/yr
- smoke alarm mains powered6K/yr
- mains powered smoke alarms8K/yr
- mains smoke alarms for home6K/yr
- mains fire alarm4K/yr
- smoke alarms for home mains powered4K/yr
Reviews and returns
What reviews say buyers love and hate about Mains Smoke Alarm
We read the reviews and the return reasons for every product selling here.
“Beware of the batteries running out”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
16 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Mains Smoke Alarm questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data








