Is soil tester for garden nutrients profitable to sell on Amazon United States?

The niche generates $1.2M/yr across 13 tracked products. 2 of 4 products launched in the last 360 days are still selling. 90-day search growth is +55.2%. Flapen's verdict: Launch it (64/100).

How competitive is the soil tester for garden nutrients niche?

11 brands and 19 sellers compete. The top 5 products take 76% of clicks and top 5 brands hold 78% of demand.

What do buyers complain about in soil tester for garden nutrients?

Top complaints mined from reviews: Measurement/Reading Accuracy, Functionality-Overall, Durability. The return rate is 1.8%.

When does demand for soil tester for garden nutrients peak?

Demand peaks in Mar–Apr–May–Jun; the busiest month runs 4.3× the quietest.

What does it cost to enter the soil tester for garden nutrients niche?

Listings span $9.26–$31.12; the average listing price is $16.41 (sweet spot $15–$100). The average incumbent carries 5,510 reviews — the moat a new listing must climb.

soil tester for garden nutrients

Launch it

A $1.2M/yr market growing +55.2% this quarter with returns at 1.8% — clears our launch bar.

Quality gap

Great4.1★

avg incumbent rating — lower means beatable quality

Conversion

Great8.6%

search→purchase rate — share of searches ending in a sale

Market size

Great$1.2M

$1.2M/yr · 851K searches

Returns

Great1.8%

return rate — above 5% kills the launch gate

Avg price

Great$16.41

avg listing price — sweet spot $15–$100

Price range

Good$9.26–$31.12

cheapest to priciest tracked listing — scored on the share inside $15–$100

Growth

Good+55.2%

90-day search growth — must beat 0% to launch

Brand share

Okay78%

top-5 brand share — brands hold most of the demand

Review moat

Bad5,509.69

avg incumbent reviews — the moat a new listing must climb

Competition

Bad76%

top-5 click share — a locked-up shelf

Signals Out of Stock

According to Flapen's Amazon United States niche tracking, soil tester for garden nutrients is a $1.2M/yr Amazon United States market (851K searches/yr). The top 5 brands hold 78% of demand. Demand peaks in Mar–Apr–May–Jun. Verdict: Launch it — 64/100.

Data updated Jul 14, 2026 · scored weekly · How we score niches

soil tester for garden nutrients market data

Units sold / yr: 60K–80K; avg 6,000–8,000/product
Revenue / yr: $985K–$1.3M; units × avg price
Conversion rate: 8.6%
Avg BSR: #15
Page quality: 0%
Prime: 100%
Sponsored: 92%
Out of stock: 0.6%
Avg brand age: 53 months
Avg seller age: 173 days

Competition & brand share

The top 5 products capture 76% of clicks — a locked-up shelf that new listings rarely crack.

Brands

11 falling

Sellers

Top-5 brand share

78%

Top 20: 100%

Top-5 click share

76%

Top 20: 100%

Open market

15%

SONKIR27%
YAMRON26%
IRTOV9%
HSLGOVE8%
AiGerdinn7%
Dewilde Trading Co7%
Open — no brand owns it (5 brands, 15%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +55.2% search growth over the last 90 days.

Peak months: Mar, Apr, May, Jun · busiest ÷ quietest = 4.3×

Open Trend

Top soil tester for garden nutrients search terms

soil ph tester191K/yr +44.9%8.6% conv.
soil tester176K/yr +45.1%4.6% conv.
soil ph test kit89K/yr +73.2%8.8% conv.
ph soil tester54K/yr +99.8%7.9% conv.
soil ph meter50K/yr +59.4%5.7% conv.
ph tester soil42K/yr +61.0%7.8% conv.
ph meter soil38K/yr +51.3%6.6% conv.
soil meter33K/yr +66.9%4.2% conv.
soil ph tester digital40K/yr +37.5%7.4% conv.
ph soil tester for garden soil29K/yr +24.6%8.5% conv.

All search terms

Top soil tester for garden nutrients 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 13 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

SONKIR Soil pH Meter MS02 3-in-1 Soil Moisture/Light/pH Tester Gardening Tool Kits for Plant Care Great for Garden Lawn Farm Indoor & Outdoor Use (Green)

SONKIR$9.394.1★46,513 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$31.124.3★3,116 rev

4-in-1 Soil Moisture Meter Digital PH Meter/Soil Moisture/Plant Temperature/Sunlight Intensity Backlight LCD Display Soil Test Meter for Garden Lawn Plant Care Farm and Indoor Outdoor Plants

IRTOV$28.884.2★1,903 rev

Soil Test Kit 100 Soil pH Test Strips (3.59 Range) for Garden Lawn & Indoor Plants Easy At-Home Soil Testing

Dewilde Trading Co$10.314.2★520 rev

HSLGOVE Soil Test Kit 7-in-One Soil Moisture Meter/Soil PH Meter/Fertility Dual Screen Soil Tester w/Digital Soil Temp/Air Temp&Humidity for Plants Gardening Lawn Farm Indoor&Outdoor-Lvory White

HSLGOVE$25.054.4★238 rev

Newest

by launch date

NewTest Soil pH Test Kit: Upgraded 125 Soil pH Test Strips with Measuring Cylinders for Accurate Testing pH Level of Garden Lawn Grass Flower Vegetable Compost Dirt

NewTest$12.0687 rev

1mo ago

Soil Moisture/PH/Light Meter Plant Soil Test Kit Indoor Outdoor Use

Pexio PretiHom$14.2733 rev

1mo ago

HSLGOVE 4-in-1 Soil Test Kit Soil Moisture Meter pH Fertility & Sun-Light No Battery Required Large Dial Soil Tester for Indoor & Outdoor Gardening Lawn Farm Stonewhite

HSLGOVE$14.7841 rev

3mo ago

HSLGOVE Soil Test Kit 7-in-One Soil Moisture Meter/Soil PH Meter/Fertility Dual Screen Soil Tester w/Digital Soil Temp/Air Temp&Humidity for Plants Gardening Lawn Farm Indoor&Outdoor-Lvory White

HSLGOVE$25.05238 rev

6mo ago

AiGerdinn Soil Test Kit 2-in-1 Soil Moisture Meter Soil pH Meter -Dual Dial-Simultaneously-Display Results-Soil pH Tester Moisture Meter for Garden Lawn Farm Indoor&Outdoor Plants-PureWhite

AiGerdinn$13.23510 rev

1y ago

What buyers say about soil tester for garden nutrients

What buyers praise and complain about, mined from review topics.

What buyers love

Ease Of Use26%

“Very useful tool”

Plant Growth16%

“my plants are very healthy”

Quality-Overall8%

“The build quality feels solid”

Value For Money8%

“Good price”

Advertised Vs Actual Product7%

“As advertised”

Measurement/Reading Accuracy7%

“It is accurate”

Moist/Dry4%

“the moisture one works great”

Instructions/User Manual/Troubleshooting2%

“Simple instructions”

Durability2%

“Durable and easy to use”

Battery Life2%

“works well right out of the box with no batteries needed”

What buyers complain about

Measurement/Reading Accuracy24%

“the accuracy/readings are way off”

Functionality-Overall17%

“DOSNT WORK”

Durability9%

“Broke very easily”

Quality-Overall8%

“Complete garbage”

Ease Of Use5%

“Hard to get anything”

Value For Money5%

“This was a little bit more expensive”

Instructions/User Manual/Troubleshooting4%

“no manual was included in my package”

Moist/Dry3%

“was dry as a bone”

Plant Growth3%

“Plants are growing so it has to be vastly wrong”

Color2%

“No color even registered”

Top return reasons

Measurement/Reading Accuracy38%

Functionality-Overall29%

Advertised Vs Actual Product7%

Defective Material/Parts5%

Value For Money4%

Size-Overall2%

Ease Of Use2%