ph meter
Worth a lookShows beatable incumbent ratings (4.0★), but soft demand (-2.4% this quarter) keeps it on the watch list.
Quality gap
Great4.0★avg incumbent rating — lower means beatable quality
Returns
Great1.4%return rate — above 5% kills the launch gate
Review moat
Great361.18avg incumbent reviews — the moat a new listing must climb
Conversion
Great7.8%search→purchase rate — share of searches ending in a sale
Avg price
Great£16.18avg listing price — sweet spot $15–$100
Price range
Good£5.56–£31.96cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Okay82%top-5 brand share — brands hold most of the demand
Market size
Okay£173K£173K/yr · 138K searches
Competition
Okay65%top-5 click share — leaders hold, buyers still browse
Growth
Bad-2.4%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United Kingdom niche tracking, ph meter is a £173K/yr Amazon United Kingdom market (138K searches/yr). The top 5 brands hold 82% of demand. Verdict: Worth a look — 55/100.
Data updated Jul 21, 2026 · scored weekly · How we score niches
ph meter market data
- Units sold / yr
- 8K–10K
- avg 250–500/product
- Revenue / yr
- £129K–£162K
- units × avg price
- Conversion rate
- 7.8%
- Avg BSR
- #19
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 94%
- Out of stock
- 9.2%
- Avg brand age
- 39 months
- Avg seller age
- 193 days
Competition & brand share
The top 5 products take 65% of clicks — established leaders, but buyers still shop beyond them.Brands
12 falling
Sellers
21
Top-5 brand share
82%
Top 20: 100%
Top-5 click share
65%
Top 20: 100%
Open market
15%
- flintronic41%
- YINMIK14%
- GIDIGI11%
- UIUZMAR11%
- Qtksceadlnce4%
- JIANGBINGREN4%
- Open — no brand owns it (6 brands, 15%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -2.4% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.2×
Top ph meter search terms
- ph meter50K/yr
- ph tester20K/yr
- ph tester for water14K/yr
- ph pen12K/yr
- ph meter for water10K/yr
- water ph tester7K/yr
- ph water tester6K/yr
- digital ph meter5K/yr
- ph meter for food6K/yr
- ph probe4K/yr
Top ph meter products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 17 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
flintronic Digital pH 0.01pH High Accuracy pH Tester 2% Reading Accuracy PH Temp Water Testers pH Meters for Household Drinking Water Pool Hydroponics Aquarium
flintronic£5.683.9★1,088 rev
YINMIK Digital pH Meter 2-in-1 pH Tester for Water with Calibration Buffer
YINMIK£13.354.3★268 rev
Digital pH Meter Water PPM Tester Color Screen 4 in 1 pH Tester pH EC TDS Temp Water Quality Test Pen Suitable for Hydroponics NFC DWC Swimming Pool Hot Tub Drinking Water Brewing&Fermentation
GIDIGI£29.714.3★245 rev
GIDIGI Digital pH Meter High Accuracy Portable Water Tester with Calibration Powders Color LCD Backlit Display with pH Test Strip Function for Lab Pools Hydroponics Aquariums Hot Tubs Drinking Water
GIDIGI£16.074.0★352 rev
UIUZMAR Food pH Tester Digital pH Meter for Food Fermentation
UIUZMAR£31.904.4★378 rev
Newest
by launch date
Digital pH Meter PH Tester for Water 0.01PH High-Precision Water Quality Tester 0-14PH Measurement Range Auto Calibration and Clear Display for Swimming Pool Drinking Water Aquariums Hydroponics
YRIGHT£8.808 rev
PH Meter Digital High Accuracy Water Quality PH Meter with ATC 0-14 Measurement Range PH Tester for Household Drinking Water Hydroponics Aquarium Water Pool(Orange-01)
SIXNEA£11.031 rev
YINMIK Digital pH Meter 4 in 1 pH Pen EC TDS Tester for Water Hydroponics pH and EC Conductivity PPM Water Tester with ATC for Nutrients Growing Indoor Garden Home Brewing Pool Aquarium Drinking Water
YINMIK£29.16541 rev
YAMRON 4-in-1 Soil Moisture Meter Digital Plant Temperature/Soil Moisture/PH Meter/Sunlight Intensity Backlight LCD Display Soil Test Meter for Gardening Farming and Outdoor Plants
YAMRON£16.65189 rev
GIDIGI Digital pH Meter High Accuracy Portable Water Tester with Calibration Powders Color LCD Backlit Display with pH Test Strip Function for Lab Pools Hydroponics Aquariums Hot Tubs Drinking Water
GIDIGI£16.07352 rev
Trending
90-day click momentumDigital pH Meter PH Tester for Water 0.01PH High-Precision Water Quality Tester 0-14PH Measurement Range Auto Calibration and Clear Display for Swimming Pool Drinking Water Aquariums Hydroponics
YRIGHT£8.803.6★
PH Meter Digital High Accuracy Water Quality PH Meter with ATC 0-14 Measurement Range PH Tester for Household Drinking Water Hydroponics Aquarium Water Pool(Orange-01)
SIXNEA£11.034.0★
GIDIGI Digital pH Meter High Accuracy Portable Water Tester with Calibration Powders Color LCD Backlit Display with pH Test Strip Function for Lab Pools Hydroponics Aquariums Hot Tubs Drinking Water
GIDIGI£16.074.0★
YINMIK Digital pH Meter 2-in-1 pH Tester for Water with Calibration Buffer
YINMIK£13.354.3★
UIUZMAR Water pH TDS Meter Pen pH EC Meter Hydroponic
UIUZMAR£23.534.2★
What buyers say about ph meter
What buyers praise and complain about, mined from review topics.What buyers love
“Easy to use”
“Ok for the price”
“Works perfectly”
“The instructions are very clear”
“works as advertised”
“Good kit”
“My house plants are flourishing”
“Good working meter”
“solid device”
“well constructed”
What buyers complain about
“Broke down quickly”
“Little tricky to get calibration done”
“Poor Quality”
“Not a cheap product”
“Doesnt work”
“My old one showed all my houseplants were dry”
“On a logarithmic scale that is so big as to be useless”
“Bit light weight”
“time waste”
“Display died after 20 minutes of use”
Top return reasons
Common questions
- Is ph meter profitable to sell on Amazon United Kingdom?
- The niche generates £173K/yr across 17 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is -2.4%. Flapen's verdict: Worth a look (55/100).
- How competitive is the ph meter niche?
- 12 brands and 21 sellers compete. The top 5 products take 65% of clicks and top 5 brands hold 82% of demand.
- What do buyers complain about in ph meter?
- Top complaints mined from reviews: Durability, Measurement/Reading Accuracy, Quality-Overall. The return rate is 1.4%.
- When does demand for ph meter peak?
- Demand is steady year-round — the busiest month runs 1.2× the quietest.
- What does it cost to enter the ph meter niche?
- Listings span £5.56–£31.96; the average listing price is £16.18 (sweet spot $15–$100). The average incumbent carries 361 reviews — the moat a new listing must climb.