Skip to content

Co2 測定器

Fail

Products sell for $5077.21 on average, outside the sweet spot, so Co2 測定器 is a Fail.

Flapen Score
46
46 / 100
Ranks 3,692 of 4,191 DIY・工具・ガーデン niches · −11 vs the category median of 57
Market size
¥53.9M/yr518K searches / yr
90-day growth
-42.3%search demand this quarter
Competition
83%top-5 click share · 10 brands · 66 sellers

Flapen Score

Co2 測定器 against its category

The dotted line is the DIY・工具・ガーデン average. Past it, Co2 測定器 is stronger. Inside it, weaker.

46Fail
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Co2 測定器 market on Amazon at a glance

Shoppers on Amazon Japan searched for Co2 測定器 518K times last year and spent an estimated ¥53.9M. The top 5 brands take 83% of clicks. Demand peaks in Jan–Feb–Dec. Flapen scores it 46 out of 100, a Fail.

01 · Demand

An estimated 2.1% of those searches ended in a purchase.

Shoppers searched for this 518K times in the last 12 months. That counts every search on Amazon Japan for this niche's terms. An estimated 2.1% of those searches ended in a purchase. Searches in the last 90 days moved -42.3% against the 90 days before. Searches, conversion and average price together put the market at an estimated ¥53.9M a year.

Searches, last 12 months
518K
Growth, 90 days vs prior 90
-42.3%
Conversion, latest week
2.1%
Market size, estimated
¥53.9Ma year
Peak month
January4.3× the quietest month
Top search term
二酸化炭素濃度計142K searches a year

02 · Price

A sale here is worth ¥5077.21.

Listings sell for ¥5077.21 on average, from ¥2999.90 to ¥7858.12. Amazon reports units sold in ranges. This niche sold 13K to 15K a year. The average listing sells 1,250 to 1,500 of them. At ¥5077.21 that is ¥6.3M to ¥7.6M a year per listing.

Average price
¥5077.21above the $15 to $100 sweet spot
Price range
¥2999.90–¥7858.12
Amazon Japan median price
¥1942.07across 14,733 niches
Units sold a year
13K–15K
Units per listing a year
1,250–1,500
Revenue per listing a year
¥6.3M–¥7.6M
Returns
0.9%of orders · Amazon Japan median 0.4%

03 · Entry bar

The bar here is low.

90% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #42 within 安全・セキュリティ. It carries 478 reviews at 4.14 stars, so a new listing needs social proof before a better product.

Sponsored listings
90%
Prime listings
100%
Out of stock, average day
0.0%
Average rank
#42in 安全・セキュリティ
Average rating
4.14 starsAmazon Japan average 4.15 stars
Average reviews
478per listing
Listings tracked
10

04 · Newcomers

1 of last year's 1 launches cleared the first-year sales bar.

1 products launched here in the last 12 months. 1 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 41 months on average, so the names here are settling in.

Launched, last 12 months
1
Successful launches
1Amazon's first-year sales bar
Average brand age
41 months

Products

Top Co2 測定器 products & what they sell for

Every tracked product: its share of the shelf, its reviews, and its price.

Sign in to see the products

The products selling in this niche are for signed-in readers. Every market figure above stays open to everyone.

Competition

Competition: brands, sellers & click share

The top 5 products take 83% of clicks. A locked shelf that new listings rarely crack.

Brands

10 rising

Sellers

66

Top-5 brand share

83%

Top 20: 100%

Top-5 click share

83%

Top 20: 100%

Open market

12%

  • Brand 150%
  • Brand 211%
  • Brand 39%
  • Brand 48%
  • Brand 56%
  • Brand 65%
  • Open — no brand owns it (4 brands, 12%)

Demand

Co2 測定器 search demand

Weekly searches over the year, seasonality beneath. Pick a range.

25K15KSpike '24Holiday '24Spike '25Prime Day '25Black Friday '25Spike '26Prime Day '26SepDecMarJunAugNovMarMay

Peak months: Jan, Feb, Dec · busiest ÷ quietest = 4.3×

Search terms

Top Co2 測定器 search terms shoppers use

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

  • 二酸化炭素濃度計142K/yr
  • co2濃度計46K/yr
  • co2センサー119K/yr
  • co245K/yr
  • 二酸化炭素24K/yr
  • co2 測定器48K/yr
  • co2モニター15K/yr
  • 二酸化炭素測定器16K/yr
  • 酸素濃度計 室内12K/yr
  • 室内酸素濃度計12K/yr

Reviews and returns

What reviews say buyers love and hate about Co2 測定器

We read the reviews and the return reasons for every product selling here.

28%of positive reviews mention “使用の容易さ”
17%of negative reviews mention “測定/読み取り精度”
0.9%of orders come back
“測定値の信頼性がガクッと下がった。”
A buyer, on “測定/読み取り精度”17% of negative reviews mention the same topic

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.

20 topics

NegativePositive

FAQ

Common Co2 測定器 questions

Answered from the same tracked data.