Door Alarm
FailShoppers spend an estimated $79K a year here, so Door Alarm is a Fail.
- Flapen Score
- 42 / 100Ranks 1,704 of 2,225 DIY & Tools niches · −7 vs the category median of 4942
- Market size
- £79K/yr150K searches / yr
- 90-day growth
- -7.1%search demand this quarter
- Competition
- 62%top-5 click share · 15 brands · 36 sellers
Flapen Score
Door Alarm against its category
The dotted line is the DIY & Tools average. Past it, Door Alarm is stronger. Inside it, weaker.
Market
The Door Alarm market on Amazon at a glance
Shoppers on Amazon United Kingdom searched for Door Alarm 150K times last year and spent an estimated £79K. The top 5 brands take 82% of clicks. Flapen scores it 42 out of 100, a Fail.
01 · Demand
An estimated 5.0% of those searches ended in a purchase.
Shoppers searched for this 150K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 5.0% of those searches ended in a purchase. Searches in the last 90 days moved -7.1% against the 90 days before. Searches, conversion and average price together put the market at an estimated £79K a year.
- Searches, last 12 months
- 150K
- Growth, 90 days vs prior 90
- -7.1%
- Conversion, latest week
- 5.0%
- Market size, estimated
- £79Ka year
- Peak month
- October1.4× the quietest month
- Top search term
- door alarm58K searches a year
02 · Price
A sale here is worth £10.65.
Listings sell for £10.65 on average, from £3.93 to £20.05. Amazon reports units sold in ranges. This niche sold 6K to 8K a year. The average listing sells 250 to 500 of them. At £10.65 that is £3K to £5K a year per listing.
- Average price
- £10.65under the $15 to $100 sweet spot
- Price range
- £3.93–£20.05
- Amazon United Kingdom median price
- £12.12across 27,606 niches
- Units sold a year
- 6K–8K
- Units per listing a year
- 250–500
- Revenue per listing a year
- £3K–£5K
- Returns
- 2.7%of orders · Amazon United Kingdom median 0.6%
03 · Entry bar
The bar here is ads.
90% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 7.4% of listings are out of stock. The average listing ranks #28 within Electrical. It carries 650 reviews at 4.28 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 90%
- Prime listings
- 100%
- Out of stock, average day
- 7.4%
- Average rank
- #28in Electrical
- Average rating
- 4.28 starsAmazon United Kingdom average 4.36 stars
- Average reviews
- 650per listing
- Listings tracked
- 21
04 · Newcomers
0 of last year's 4 launches cleared the first-year sales bar.
4 products launched here in the last 12 months. 0 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 47 months on average, so the names here are settling in.
- Launched, last 12 months
- 4
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 47 months
Products
Top Door 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
VOXON Wireless Door and Window Alarm Sensor 2 Pack 2 Modes Magnetic Window Door Burglar Alarm with 100dB Loud for Kids Safety Home Shop Security
- Price
- £7.87
- Rating
- 4.4/5
- Reviews
- 1,820
- Age
- 6y ago

Door Alarm Sensor 120dB Window Alarms for Home Security Ultra-Slim Wireless Magnetic Sensor Burglar Alarm with Batteries included for House Flat Shop Office & Garage 2 Pack
- Price
- £8.40
- Rating
- 4.4/5
- Reviews
- 2,009
- Age
- 9y ago

TECKNET Door Alarm Sensor Window Alarms Sensors 2-in-1 Alarm & Chime 3-level Volume Control Door Sensor for Home Security Wireless Burglar Alarms for House Shop Office Garage (3 PCS)
- Price
- £10.73
- Rating
- 4.6/5
- Reviews
- 2,144
- Age
- 3y ago

SANJIE Wireless Door Open Alarm Sensor Chime 600FT Operating Range 55 Ringtones 5 Volume Level with LED Indicator Door Alarm for Home Store Office Security When Opens 1 UK Plug-in Receiver 1 Sensor
- Price
- £14.14
- Rating
- 4.3/5
- Reviews
- 193
- Age
- 2y ago

TECKNET Door Alarms When Opened Alarm & Chime Winsow Sensor Home Security With 3-Level Volume Selection Red-Flashing-Ligh Garage Alarms Door Sensor Alarm for Window Garage Pool and Anti-Theft
- Price
- £10.28
- Rating
- 4.6/5
- Reviews
- 356
- Age
- 1y ago
Trending
estimated 90-day click momentum
ChunHee Door Alarms when Opened Door Chime for Business/Home/Shop
- Price
- £20.05
- Rating
- 4.3/5
- Reviews
- 43
- Age
- 3mo ago

TECKNET Door Sensor Alarm with Remote Control Door Alarms When Opened 4 Modes & 5-Level Volume Window Alarms for Home Security with Sirens Burglar Alarm for Home Shop Office Garage (2 PCS)
- Price
- £12.19
- Rating
- 4.5/5
- Reviews
- 962
- Age
- 10mo ago

Door Window Alarm Sensor Wireless Vibration Alarm Bell for Home Security 95 dB Loud Siren Magnetic Burglar Warning Detector for School Office Shop Shed Hotel Home (2Pack White No Battery)
- Price
- £3.93
- Rating
- 4.5/5
- Reviews
- 7
- Age
- 9mo ago

SANJIE Door Alarms When Opened with Instant & Delayed Alerts 30s/1min/2min/4min Door Left Alarm Sensor Chime 2-in-1 Alarms/Chimes for Home Security Fridge Alarm with 0-120dB Ajar Warning
- Price
- £12.82
- Rating
- 4.4/5
- Reviews
- 18
- Age
- 7mo ago

TECKNET Door Alarms When Opened Alarm & Chime Winsow Sensor Home Security With 3-Level Volume Selection Red-Flashing-Ligh Garage Alarms Door Sensor Alarm for Window Garage Pool and Anti-Theft
- Price
- £10.28
- Rating
- 4.6/5
- Reviews
- 356
- Age
- 1y ago
Newest
by launch date
ChunHee Door Alarms when Opened Door Chime for Business/Home/Shop
- Price
- £20.05
- Rating
- 4.3/5
- Reviews
- 43
- Age
- 3mo ago

SANJIE Door Alarms When Opened with Instant & Delayed Alerts 30s/1min/2min/4min Door Left Alarm Sensor Chime 2-in-1 Alarms/Chimes for Home Security Fridge Alarm with 0-120dB Ajar Warning
- Price
- £12.82
- Rating
- 4.4/5
- Reviews
- 18
- Age
- 7mo ago

Door Window Alarm Sensor Wireless Vibration Alarm Bell for Home Security 95 dB Loud Siren Magnetic Burglar Warning Detector for School Office Shop Shed Hotel Home (2Pack White No Battery)
- Price
- £3.93
- Rating
- 4.5/5
- Reviews
- 7
- Age
- 9mo ago

TECKNET Door Sensor Alarm with Remote Control Door Alarms When Opened 4 Modes & 5-Level Volume Window Alarms for Home Security with Sirens Burglar Alarm for Home Shop Office Garage (2 PCS)
- Price
- £12.19
- Rating
- 4.5/5
- Reviews
- 962
- Age
- 10mo ago

TECKNET Door Alarms When Opened Alarm & Chime Winsow Sensor Home Security With 3-Level Volume Selection Red-Flashing-Ligh Garage Alarms Door Sensor Alarm for Window Garage Pool and Anti-Theft
- Price
- £10.28
- Rating
- 4.6/5
- Reviews
- 356
- Age
- 1y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 62% of clicks. Leaders hold, but buyers still shop past them.
Brands
15 falling
Sellers
36
Est. top-5 brand share
82%
Top 20: 100%
Est. top-5 click share
62%
Top 20: 99%
Open market
15%
- TECKNET28%
- VOXON22%
- Noopel13%
- SanJie11%
- Defender7%
- TechRise4%
- Open — no brand owns it (9 brands, 15%)
Demand
Door Alarm search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.4×
Search terms
Top Door Alarm search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- door alarm58K/yr
- door alarms when opened44K/yr
- door sensor alarm19K/yr
- door alarms12K/yr
- door alarm sensor13K/yr
- door handle alarm5K/yr
Reviews and returns
What reviews say buyers love and hate about Door Alarm
We read the reviews and the return reasons for every product selling here.
“Really loud”
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.
18 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 Door 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








