soil thermometer
Worth a lookShows low returns (1.5%), but soft demand (-32.4% this quarter) keeps it on the watch list.
Returns
Great1.5%return rate — above 5% kills the launch gate
Conversion
Great8.2%search→purchase rate — share of searches ending in a sale
Brand share
Great58%top-5 brand share — no brand owns this niche
Avg price
Good$13.62avg listing price — sweet spot $15–$100
Price range
Good$5.37–$31.12cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Competition
Good54%top-5 click share — leaders hold, buyers still browse
Market size
Okay$189K$189K/yr · 170K searches
Review moat
Okay3,139.48avg incumbent reviews — the moat a new listing must climb
Growth
Bad-32.4%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, soil thermometer is a $189K/yr Amazon United States market (170K searches/yr). The top 5 brands hold 58% of demand. Demand peaks in Mar–Apr–May. Verdict: Worth a look — 52/100.
Data updated Jul 14, 2026 · scored weekly · How we score niches
soil thermometer market data
- Units sold / yr
- 15K–20K
- avg 1,000–1,250/product
- Revenue / yr
- $204K–$272K
- units × avg price
- Conversion rate
- 8.2%
- Avg BSR
- #1,491
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 65%
- Out of stock
- 2.9%
- Avg brand age
- 49 months
- Avg seller age
- 173 days
Competition & brand share
The top 5 products take 54% of clicks — established leaders, but buyers still shop beyond them.Brands
17 rising
Sellers
61
Top-5 brand share
58%
Top 20: 100%
Top-5 click share
54%
Top 20: 97%
Open market
36%
- YAMRON17%
- Urban Worm14%
- REOTEMP12%
- Taylor10%
- IRTOV6%
- Grenebo5%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -32.4% search growth over the last 90 days.Peak months: Mar, Apr, May · busiest ÷ quietest = 10.7×
Top soil thermometer search terms
- soil thermometer72K/yr
- soil thermometer for gardening36K/yr
- soil temperature thermometer24K/yr
- soil temperature probe11K/yr
- soil thermometers7K/yr
- ground thermometer soil outdoor2K/yr
- soil thermometer for lawn10K/yr
- ground temperature thermometer3K/yr
- ground thermometer soil4K/yr
Top soil thermometer 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 23 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
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
Urban Worm Soil Thermometer - 5-in Stainless Steel Stem - Perfect for Gardening & Worm Bin
Urban Worm$11.924.6★1,253 rev
Taylor Soil Testing Thermometer Gardening Tool for Plant Care Gardening Lawn Farm Outdoor Use 4 Inch Stem
Taylor$11.994.4★768 rev
REOTEMP K82-3 Soil Thermometer 5 Inch Stem Waterproof for Seeding and Transplanting Garden Temperature Measurement 0-220 Fahrenheit
REOTEMP$10.724.5★516 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
Newest
by launch date
Grenebo 3-in-1 Soil Moisture Meter Digital Plant Water Meter Temperature & Sunlight Intensity Sensor LCD Display Soil Tester for Gardening Farming Plant Care Indoor & Outdoor PlantsGreen
Grenebo$9.60246 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$25.05238 rev
STOWBERRY Greenhouse Soil Thermometer Durable Probe for Measuring Soil Temperature in Gardens Propagators Seeds and Plants
STOWBERRY$7.9324 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$31.123,116 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$28.881,903 rev
Trending
90-day click momentumGrenebo 3-in-1 Soil Moisture Meter Digital Plant Water Meter Temperature & Sunlight Intensity Sensor LCD Display Soil Tester for Gardening Farming Plant Care Indoor & Outdoor PlantsGreen
Grenebo$9.603.6★
Supco ST08 Stainless Steel Pocket Dial Thermometer 5 Stem 1-3/4 Dial -40 to 160 Degrees F
Supco$7.514.6★
Compost Soil Thermometer 16 Inch Stainless Steel Stem
Wirezar$15.084.7★
STOWBERRY Greenhouse Soil Thermometer Durable Probe for Measuring Soil Temperature in Gardens Propagators Seeds and Plants
STOWBERRY$7.934.3★
Craft911 Plant Moisture Meter
Craft911$9.324.5★
What buyers say about soil thermometer
What buyers praise and complain about, mined from review topics.What buyers love
“Easy to read”
“Helpful for my plant collection”
“As advertised”
“The build quality feels solid”
“worth every penny”
“the accuracy is good”
“Its simple and practical and gives me the correct moisture level for each plant”
“durable material”
“is reliable so far”
“I haven't had any issues with batteries dying”
What buyers complain about
“Inaccurate”
“Never worked”
“Broke within a week”
“Complete garbage”
“This was a little bit more expensive”
“was dry as a bone”
“Bad manual”
“really tried VERY hard to like it”
“Plants are growing so it has to be vastly wrong”
“Stuck it in water”
Top return reasons
Common questions
- Is soil thermometer profitable to sell on Amazon United States?
- The niche generates $189K/yr across 23 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is -32.4%. Flapen's verdict: Worth a look (52/100).
- How competitive is the soil thermometer niche?
- 17 brands and 61 sellers compete. The top 5 products take 54% of clicks and top 5 brands hold 58% of demand.
- What do buyers complain about in soil thermometer?
- Top complaints mined from reviews: Measurement/Reading Accuracy, Functionality-Overall, Durability. The return rate is 1.5%.
- When does demand for soil thermometer peak?
- Demand peaks in Mar–Apr–May; the busiest month runs 10.7× the quietest.
- What does it cost to enter the soil thermometer niche?
- Listings span $5.37–$31.12; the average listing price is $13.62 (sweet spot $15–$100). The average incumbent carries 3,139 reviews — the moat a new listing must climb.