Door Alarm
a small market ($79K/yr) — Door Alarm doesn't clear our bar today.
Flapen Score
Is Door Alarm profitable on Amazon?
According to Flapen's Amazon United Kingdom niche tracking, Door Alarm is a £79K/yr Amazon United Kingdom market (150K searches/yr). The top 5 brands hold 82% of demand. Verdict: Skip it — 42/100.
Door Alarm: the Amazon niche in one read
Everything a seller checks before entering, in three answers.
Is the demand real?
Not really. Search demand moved -7.1% over the last 90 days and 5.0% of searches end in a purchase.
£79K
revenue / yr
Who owns the niche?
The top 5 brands hold 82% of demand, so 19% of the market is open.
19%
open market share
Is there a way in?
Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.3★ — the gap to enter on.
0/100
page quality · 21 products
Top Door Alarm products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Top sellers
by 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
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: brands, sellers & click share
The top 5 products take 62% of clicks — established leaders, but buyers still shop beyond them.
Brands
15 falling
Sellers
36
Top-5 brand share
82%
Top 20: 100%
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%)
Door Alarm demand & seasonality
Weekly search volume, with the niche's key stats alongside.
No pronounced peak months · busiest ÷ quietest = 1.4×
Top Door Alarm search terms shoppers use
The exact queries shoppers type, with 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
What reviews say buyers love and hate about Door Alarm
What buyers mention most, as a share of all reviews.
What buyers love
77% of reviews“Good value for money”
“Excellent product”
“Works as advertised”
“Good, different sounds and really high pitched for the alarm sound”
“Easy to use”
What buyers complain about
57% of reviews“Really loud”
“Doesnt work”
“broke easily”
“Cheap not very good”
“didn't fit my door frames”
Door Alarm return rate & reasons
Why buyers send it back, as a share of all return requests.
2.7%
Return rate
14%
Fixable by listing
The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.
Common Door Alarm questions
The questions sellers ask about this niche, answered from the tracked metrics.
Best Flapen score
The highest-scoring niches we track right now, across every category.








