Is grain moisture tester profitable to sell on Amazon United States?

The niche generates $140K/yr across 20 tracked products. 2 of 5 products launched in the last 360 days are still selling. 90-day search growth is +9.9%. Flapen's verdict: Skip it (45/100).

How competitive is the grain moisture tester niche?

12 brands and 35 sellers compete. The top 5 products take 58% of clicks and top 5 brands hold 81% of demand.

What do buyers complain about in grain moisture tester?

Top complaints mined from reviews: Value For Money, Defective Material/Parts, Ease Of Use. The return rate is 2.9%.

When does demand for grain moisture tester peak?

Demand peaks in Sep–Oct–Nov; the busiest month runs 5.2× the quietest.

What does it cost to enter the grain moisture tester niche?

Listings span $26.94–$321.91; the average listing price is $160.50 (sweet spot $15–$100). The average incumbent carries 138 reviews — the moat a new listing must climb.

grain moisture tester

Skip it

Prices mostly outside the sweet spot ($26.94–$321.91) — this niche doesn't clear our bar today.

Review moat

Great137.85

avg incumbent reviews — the moat a new listing must climb

Quality gap

Good4.3★

avg incumbent rating — lower means beatable quality

Avg price

Good$160.50

avg listing price — sweet spot $15–$100

Returns

Good2.9%

return rate — above 5% kills the launch gate

Competition

Okay58%

top-5 click share — leaders hold, buyers still browse

Brand share

Okay81%

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

Growth

Okay+9.9%

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

Market size

Okay$140K

$140K/yr · 35K searches

Conversion

Okay2.5%

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

Price range

Okay$26.94–$321.91

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

Signals Low Review Barrier High Price

According to Flapen's Amazon United States niche tracking, grain moisture tester is a $140K/yr Amazon United States market (35K searches/yr). The top 5 brands hold 81% of demand. Demand peaks in Sep–Oct–Nov. Verdict: Skip it — 45/100.

Data updated Jul 28, 2026 · scored weekly · How we score niches

grain moisture tester market data

Units sold / yr: 500–750; avg 0–100/product
Revenue / yr: $80K–$120K; units × avg price
Conversion rate: 2.5%
Avg BSR: #138
Page quality: 0%
Prime: 100%
Sponsored: 80%
Out of stock: 4.7%
Avg brand age: 46 months
Avg seller age: 190 days

Competition & brand share

The top 5 products take 58% of clicks — established leaders, but buyers still shop beyond them.

Brands

12 flat

Sellers

Top-5 brand share

81%

Top 20: 100%

Top-5 click share

58%

Top 20: 100%

Open market

15%

GOYOJO26%
AgraTronix25%
AMTAST14%
Brolangt10%
GOYERRNES5%
Antstone4%
Open — no brand owns it (6 brands, 15%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +9.9% search growth over the last 90 days.

Peak months: Sep, Oct, Nov · busiest ÷ quietest = 5.2×

Open Trend

Top grain moisture tester search terms

grain moisture tester16K/yr +89.1%2.3% conv.
medidor de humedad de granos7K/yr -22.9%0.8% conv.
medidor de humedad de cafe5K/yr -16.8%1.6% conv.
grain moisture meter3K/yr -2.3%2.0% conv.
corn moisture tester4K/yr -4.5%1.9% conv.

All search terms

Top grain moisture tester 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★)1 product missing review or click data not plotted

All 20 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Grain Moisture Tester Portable Cup-Type Meter for 25 Grains Including Wheat Corn Coffee High Precision with Temperature Compensation Data Storage for Farmers Food Processors & Traders - GOYOJO

GOYOJO$136.454.3★35 rev

Grain Moisture Tester for 25 Crops Portable Cup-Type Corn Moisture Meter

Brolangt$127.714.9★6 rev

Agratronix MT-Pro Portable Moisture Tester for Grain with Digital Meter Readout Grain Tester with Carry Case

AgraTronix$239.414.5★92 rev

Agratronix Coffee Moisture Tester Model 08150

AgraTronix$229.364.6★282 rev

Agratronix MT-16 Portable Grain Moisture Tester with Digital Meter Display

AgraTronix$212.244.7★58 rev

Newest

by launch date

Grain Moisture Tester for 40 Grains Smart Grain Coffee Bean Moisture Meter with Temperature Measurement Data Storage Portable Cup-Type Grain Moisture Detector for Wheat Corn Cocoa Beans Seed

LYCEBELL$167.410 rev

4mo ago

Coffee Moisture Tester for Moisture Content Density Sample Temperature Patented Bean Distributor HD Touchscreen Portable Real-Time Accuracy for Professional Roasters & Coffee Enthusiasts

COFFMETER$321.9110 rev

8mo ago

Antstone 43-in-1 Grain Moisture Tester 0.5% High Precision for Corn Wheat Coffee Portable Cup-Type Moisture Meter with Temperature Compensation for Farmers Food Processors Traders

Antstone$209.659 rev

8mo ago

Grain Moisture Tester for 25 Crops Portable Cup-Type Corn Moisture Meter

Brolangt$127.716 rev

9mo ago

Hay Moisture Tester Meter Portable Digital Probe Tester with LCD Grain moisture meter High-precision meter for rice wheat corn rice and 14 other crops Voice broadcast water meter

HISUEKIG$38.643 rev

12mo ago

What buyers say about grain moisture tester

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

What buyers love

Measurement/Reading Accuracy27%

“Tested accurate”

Ease Of Use20%

“It is simple to operate”

Quality-Overall10%

“Works great — accurate, easy to use, and excellent quality”

Advertised Vs Actual Product9%

“Product works perfectly as announced”

Portability8%

“Its easy to use and portable, and it gives fast results,”

Value For Money5%

“Good product for the price”

Design-Overall4%

“The cup-style design is straightforward, scoop, measure, move on with life”

Precision Of Cut4%

“Surprisingly Handy for the Home Grain Hoarder”

Size-Overall3%

“everything fits together nicely”

Battery Life2%

“love that it has a rechargeable battery”

What buyers complain about

Value For Money25%

“The product is not worth the money”

Defective Material/Parts25%

“Issue on the item”

Ease Of Use8%

“That said, theres a small learning curve if youre not used to this kind of device”

Measurement/Reading Accuracy8%

“without reliable accuracy its hard to trust for anything beyond a rough estimate”

Top return reasons

Measurement/Reading Accuracy40%

Functionality-Overall22%

Advertised Vs Actual Product13%

Defective Material/Parts6%

Product Condition6%

Quality-Overall3%

Battery Inclusion3%

Value For Money3%