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Door Sensor

brand-locked demand (top 5 brands take 100% of clicks) — Door Sensor doesn't clear our bar today.

Flapen Score

35
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Market size 16Growth 17Conversion 55Competition 17Returns 53Price range 77Avg price 76Brand share 0Review moat 52Quality gap 62
This niche Category average

Is Door Sensor profitable on Amazon?

According to Flapen's Amazon United Kingdom niche tracking, Door Sensor is a £66K/yr Amazon United Kingdom market (94K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jan–Feb–Oct–Nov–Dec. Verdict: Skip it — 35/100.

Door Sensor: the Amazon niche in one read

Everything a seller checks before entering, in three answers.

Is the demand real?

Not really. Search demand moved -15.7% over the last 90 days and 4.6% of searches end in a purchase.

£66K

revenue / yr

Units sold / yr5K
Search volume / yr-15.7%94K
Conversion rate4.6%
Avg price£15.34

Who owns the niche?

The top 5 brands hold 100% of demand, so 0% of the market is open.

0%

open market share

Brands · sellers5 · 36
Top-5 product click share79%
Open market0%
Avg brand age44 months

Is there a way in?

Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.4★ — the gap to enter on.

0/100

page quality · 11 products

Sponsored placement45%
New entrants (1y)0· 0 succeeded
Avg rating4.4★
Avg reviews1,417

Top Door Sensor products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

Competition: brands, sellers & click share

The top 5 products capture 79% of clicks — a locked-up shelf that new listings rarely crack.

£0£10K£20K£29K£39K1001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

5 falling

Sellers

36

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

79%

Top 20: 100%

Open market

0%

  • Tapo66%
  • Aqara23%
  • SONOFF6%
  • SanJie3%
  • SENCKIT2%

Door Sensor demand & seasonality

Weekly search volume, with the niche's key stats alongside.

Volume94KCVR4.6%Products11Brands5Top 5 Brands100%OOS Rate10.0%Rating4.4★Reviews1,417Avg BSR#11
15K10KSpike '24Black Friday '24Spike '25Black Friday '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Jan, Feb, Oct, Nov, Dec · busiest ÷ quietest = 3.5×

Top Door Sensor search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.

  • door sensor25K/yr
  • tapo door sensor16K/yr
  • tapo alarm8K/yr
  • aqara door sensor8K/yr
  • tapo alarm system7K/yr
  • door sensor that alerts your phone5K/yr
  • smart door sensor5K/yr
  • tapo t1105K/yr
  • door contact sensor3K/yr
  • contact sensor4K/yr

What reviews say buyers love and hate about Door Sensor

What buyers mention most, as a share of all reviews.

What buyers love

65% of reviews
Assembly/Installation15%

easy to install

Quality-Overall9%

Great quality and easy installation

Connectivity-Overall8%

The system connects

Value For Money8%

good price

Compatibility-Overall6%

it paired with my doorbell easily

What buyers complain about

58% of reviews
Connectivity-Overall18%

and they conflicted with each other, giving false readings and regularly disconnecting

Size-Overall7%

its small

Value For Money6%

Too expensive

Compatibility-Overall5%

It's very strange that it doesn't support the latest version of the Tapo D130

Assembly/Installation4%

I had trouble setting it up on my iPhone

Door Sensor return rate & reasons

Why buyers send it back, as a share of all return requests.

2.9%

Return rate

6%

Fixable by listing

The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.

1Compatibility-Overall
31%
2Connectivity-Overall
26%
3Functionality-Overall
16%
4Defective Material/Parts
5%
5Size-Overall
3%

Common Door Sensor questions

The questions sellers ask about this niche, answered from the tracked metrics.

Flapen scores Door Sensor 35/100 on Amazon United Kingdom — Skip it. The niche generates £66K/yr across 11 tracked products. Search demand moved -15.7% over the last 90 days.
Search demand for Door Sensor on Amazon United Kingdom peaks in Jan–Feb–Oct–Nov–Dec, where the busiest month runs 3.5× the quietest.