Alkalinity Tester
FailThe top 5 brands take 94% of clicks, so Alkalinity Tester is a Fail.
- Flapen Score
- 47 / 100Ranks 2,474 of 3,978 Pet Supplies niches · −4 vs the category median of 5147
- Market size
- $216K/yr83K searches / yr
- 90-day growth
- -14.2%search demand this quarter
- Competition
- 45%top-5 click share · 11 brands · 89 sellers
Flapen Score
Alkalinity Tester against its category
The dotted line is the Pet Supplies average. Past it, Alkalinity Tester is stronger. Inside it, weaker.
Market
The Alkalinity Tester market on Amazon at a glance
Shoppers on Amazon United States searched for Alkalinity Tester 83K times last year and spent an estimated $216K. The top 5 brands take 94% of clicks. Flapen scores it 47 out of 100, a Fail.
01 · Demand
An estimated 3.3% of those searches ended in a purchase.
Shoppers searched for this 83K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 3.3% of those searches ended in a purchase. Searches in the last 90 days moved -14.2% against the 90 days before. Searches, conversion and average price together put the market at an estimated $216K a year.
- Searches, last 12 months
- 83K
- Growth, 90 days vs prior 90
- -14.2%
- Conversion, latest week
- 3.3%
- Market size, estimated
- $216Ka year
- Peak month
- March1.3× the quietest month
- Top search term
- hanna checker34K searches a year
02 · Price
A sale here is worth $79.31.
Listings sell for $79.31 on average, from $8.13 to $476.04. Amazon reports units sold in ranges. This niche sold 3K to 3K a year. The average listing sells 0 to 100 of them. At $79.31 that is $0 to $8K a year per listing.
- Average price
- $79.31inside the $15 to $100 sweet spot
- Price range
- $8.13–$476.04
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 3K–3K
- Units per listing a year
- 0–100
- Revenue per listing a year
- $0–$8K
- Returns
- 0.9%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is low.
77% of listings pay for placement with sponsored ads. 90% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #173 within Fish & Aquatic Pets. It carries 1,207 reviews at 4.45 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 77%
- Prime listings
- 90%
- Out of stock, average day
- 0.0%
- Average rank
- #173in Fish & Aquatic Pets
- Average rating
- 4.45 starsAmazon United States average 4.42 stars
- Average reviews
- 1,207per listing
- Listings tracked
- 31
04 · Newcomers
1 of last year's 2 launches cleared the first-year sales bar.
2 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 58 months on average, so the names here are settling in.
- Launched, last 12 months
- 2
- Successful launches
- 1Amazon's first-year sales bar
- Average brand age
- 58 months
Products
Top Alkalinity Tester 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 17, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Hanna Instruments High Range Nitrate Checker HI782
- Price
- $64.26
- Rating
- 4.6/5
- Reviews
- 714
- Age
- 5y ago

Hanna Instruments Reef Pro Checker Kit V2 - HI 772/758/774/98319/70436M
- Price
- $287.27
- Rating
- 4.4/5
- Reviews
- 93
- Age
- 7y ago

Hanna Instruments HI755 Checker HC Low Range Saltwater Aquarium Water Testing Alkalinity Colorimeter
- Price
- $66.62
- Rating
- 4.3/5
- Reviews
- 85
- Age
- 13y ago

WLR Industries Hanna HI772 Checker Saltwater Aquarium Alkalinity Colorimeter Checker Tester
- Price
- $67.81
- Rating
- 4.7/5
- Reviews
- 143
- Age
- 2y ago

WLR Industries Hanna HI774 Phosphate Ultra Low Range Colorimeter for Marine and Saltwater appllications Phosphate Checker
- Price
- $67.49
- Rating
- 4.7/5
- Reviews
- 133
- Age
- 5y ago
Trending
estimated 90-day click momentum
625187054 Red 4 Years
- Price
- $13.04
- Rating
- 4.6/5
- Reviews
- 61
- Age
- 9mo ago

Lupo 6-in-1 Pool Test Kit | Pool Testing Kit for Residential Swimming Pools & Spas for Testing Total Chlorine Total Bromine pH Base Demand Acid Demand & Total Alkalinity Quick & Accurate Testing
- Price
- $22.24
- Rating
- 4.2/5
- Reviews
- 398
- Age
- 2y ago

Industrial Test Systems 480005 WaterWorks pH/Total Alkalinity Test
- Price
- $15.93
- Rating
- 4.3/5
- Reviews
- 22
- Age
- 16y ago

EASYTEST 7-Way Pool Test Strips 150 Strips Water Chemical Testing for Hot tub and Spa Accurate Test Bromine Total Alkalinity pH Free Chlorine Total Hardness Cyanuric Acid and Total Chlorine
- Price
- $12.04
- Rating
- 4.4/5
- Reviews
- 25,404
- Age
- 4y ago

Monitor Alkalinity Test KIT for Coral & Reef (120 Tests)
- Price
- $12.38
- Rating
- 4.5/5
- Reviews
- 18
- Age
- 1y ago
Newest
by launch date
625187054 Red 4 Years
- Price
- $13.04
- Rating
- 4.6/5
- Reviews
- 61
- Age
- 9mo ago

Monitor Alkalinity Test KIT for Coral & Reef (120 Tests)
- Price
- $12.38
- Rating
- 4.5/5
- Reviews
- 18
- Age
- 1y ago

WLR Industries Hanna HI772 Checker Saltwater Aquarium Alkalinity Colorimeter Checker Tester
- Price
- $67.81
- Rating
- 4.7/5
- Reviews
- 143
- Age
- 2y ago

WLR Industries Hanna HI775 Checker Freshwater Aquarium Alkalinity Colorimeter Checker Tester
- Price
- $68.30
- Rating
- 3.9/5
- Reviews
- 13
- Age
- 2y ago

HI764 Hanna Ultra Low Range Nitrite Checker HC Nitro ULR Meter - Saltwater Aquarium Ultra Low Range Nitrite Colorimeter - Checker
- Price
- $66.69
- Rating
- 4.5/5
- Reviews
- 43
- Age
- 2y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 45% of clicks. Leaders hold, but buyers still shop past them.
Brands
11 falling
Sellers
89
Est. top-5 brand share
94%
Top 20: 100%
Est. top-5 click share
45%
Top 20: 89%
Open market
4%
- Hanna Instruments65%
- WLR Industries17%
- VARMILO6%
- Salifert3%
- Lupo Global2%
- EASYTEST2%
- Open — no brand owns it (5 brands, 4%)
Demand
Alkalinity Tester search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.3×
Search terms
Top Alkalinity Tester search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- hanna checker34K/yr
- hanna instruments16K/yr
- alkalinity tester8K/yr
- alkalinity test kit7K/yr
- hanna test kit6K/yr
- hanna tester kit saltwater4K/yr
- hanna tester4K/yr
- hanna checker kit4K/yr
Reviews and returns
What reviews say buyers love and hate about Alkalinity Tester
We read the reviews and the return reasons for every product selling here.
“Accuracy is a bit off”
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.
16 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 Alkalinity Tester 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









