---
title: "Soil Thermometer — $189K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/patio-lawn-garden/soil-thermometer"
last_updated: "2026-08-10T08:55:32.053Z"
locale: en
meta:
description: "Niche score 52/100 · $189K/yr market · 170K searches/yr · $13.62 avg price. Soft demand (-32.4% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 52/100 · $189K/yr market · 170K searches/yr · $13.62 avg price. Soft demand (-32.4% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Soil Thermometer — $189K/yr Amazon US Niche (2026) - Flapen"
---
# **soil thermometer**
**Worth a look**
Shows low returns (1.5%), but soft demand (-32.4% this quarter) keeps it on the watch list.
Market size 38Growth 9Conversion 80Competition 51Returns 84Price range 63Avg price 63Brand share 77Review moat 34Quality gap 55
**Returns**
**Great****1.5%**
return rate — above 5% kills the launch gate
**Conversion**
**Great****8.2%**
search→purchase rate — share of searches ending in a sale
**Brand share**
**Great****58%**
top-5 brand share — no brand owns this niche
**Avg price**
**Good****$13.62**
avg listing price — sweet spot $15–$100
**Price range**
**Good****$5.37–$31.12**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Competition**
**Good****54%**
top-5 click share — leaders hold, buyers still browse
**Market size**
**Okay****$189K**
$189K/yr · 170K searches
**Review moat**
**Okay****3,139.48**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Bad****-32.4%**
90-day search growth — must beat 0% to launch
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%")
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 ~~](https://flapen.com/research/methodology)
## **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.
10K6KSpike '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Mar, Apr, May · busiest ÷ quietest = 10.7×
[**Open Trend **](https://flapen.com/research/us/patio-lawn-garden/soil-thermometer/trend)
## **Top soil thermometer search terms**
- **soil thermometer**72K/yr-40.0%9.9% conv. - **soil thermometer for gardening**36K/yr+15.2%10.9% conv. - **soil temperature thermometer**24K/yr-36.3%8.6% conv. - **soil temperature probe**11K/yr-41.6%7.1% conv. - **soil thermometers**7K/yr-35.4%4.1% conv. - **ground thermometer soil outdoor**2K/yr+62.7%10.0% conv. - **soil thermometer for lawn**10K/yr-77.1%8.3% conv. - **ground temperature thermometer**3K/yr-48.4%8.1% conv. - **ground thermometer soil**4K/yr-75.7%10.9% conv. [**All search terms **](https://flapen.com/research/us/patio-lawn-garden/soil-thermometer/search-terms)
## **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.
0%5%$9K10%$19K15%$28K20%$38K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 23 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**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**$31.12**4.3★3,116 rev](https://www.amazon.com/dp/B0DF4TB93J) [2**Urban Worm Soil Thermometer - 5-in Stainless Steel Stem - Perfect for Gardening & Worm Bin**Urban Worm**$11.92**4.6★1,253 rev](https://www.amazon.com/dp/B08BK834K8) [3**Taylor Soil Testing Thermometer Gardening Tool for Plant Care Gardening Lawn Farm Outdoor Use 4 Inch Stem**Taylor**$11.99**4.4★768 rev](https://www.amazon.com/dp/B0030JWAVA) [4**REOTEMP K82-3 Soil Thermometer 5 Inch Stem Waterproof for Seeding and Transplanting Garden Temperature Measurement 0-220 Fahrenheit**REOTEMP**$10.72**4.5★516 rev](https://www.amazon.com/dp/B07F93K8ZY) [5**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**$28.88**4.2★1,903 rev](https://www.amazon.com/dp/B0DCNX5M45)
**~~View all top sellers →~~**
### **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**$9.60**246 rev5mo ago](https://www.amazon.com/dp/B0GL7P2WLL) [**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**$25.05**238 rev6mo ago](https://www.amazon.com/dp/B0GFT2K64C) [**STOWBERRY Greenhouse Soil Thermometer Durable Probe for Measuring Soil Temperature in Gardens Propagators Seeds and Plants**STOWBERRY**$7.93**24 rev1y ago](https://www.amazon.com/dp/B0FCG2Y7YJ) [**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**$31.12**3,116 rev1y ago](https://www.amazon.com/dp/B0DF4TB93J) [**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**$28.88**1,903 rev1y ago](https://www.amazon.com/dp/B0DCNX5M45)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**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**$9.60**3.6★**▲ 196%**](https://www.amazon.com/dp/B0GL7P2WLL) [**Supco ST08 Stainless Steel Pocket Dial Thermometer 5 Stem 1-3/4 Dial -40 to 160 Degrees F**Supco**$7.51**4.6★**▲ 137%**](https://www.amazon.com/dp/B005S2DOAI) [**Compost Soil Thermometer 16 Inch Stainless Steel Stem**Wirezar**$15.08**4.7★**▲ 123%**](https://www.amazon.com/dp/B09MLQL1KX) [**STOWBERRY Greenhouse Soil Thermometer Durable Probe for Measuring Soil Temperature in Gardens Propagators Seeds and Plants**STOWBERRY**$7.93**4.3★**▲ 120%**](https://www.amazon.com/dp/B0FCG2Y7YJ) [**Craft911 Plant Moisture Meter**Craft911**$9.32**4.5★**▲ 114%**](https://www.amazon.com/dp/B0C891QKWP)
**~~View all trending →~~**
## **What buyers say about soil thermometer**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Ease Of Use**23%
*“Easy to read”*
**Plant Growth**16%
*“Helpful for my plant collection”*
**Advertised Vs Actual Product**10%
*“As advertised”*
**Quality-Overall**8%
*“The build quality feels solid”*
**Value For Money**8%
*“worth every penny”*
**Measurement/Reading Accuracy**6%
*“the accuracy is good”*
**Moist/Dry**5%
*“Its simple and practical and gives me the correct moisture level for each plant”*
**Durability**3%
*“durable material”*
**Strength**2%
*“is reliable so far”*
**Battery Life**2%
*“I haven't had any issues with batteries dying”*
### **What buyers complain about **
**Measurement/Reading Accuracy**25%
*“Inaccurate”*
**Functionality-Overall**16%
*“Never worked”*
**Durability**10%
*“Broke within a week”*
**Quality-Overall**7%
*“Complete garbage”*
**Value For Money**4%
*“This was a little bit more expensive”*
**Moist/Dry**4%
*“was dry as a bone”*
**Instructions/User Manual/Troubleshooting**4%
*“Bad manual”*
**Ease Of Use**3%
*“really tried VERY hard to like it”*
**Plant Growth**2%
*“Plants are growing so it has to be vastly wrong”*
**Water Resistance**2%
*“Stuck it in water”*
### **Top return reasons **
**Measurement/Reading Accuracy**40%
**Functionality-Overall**28%
**Advertised Vs Actual Product**7%
**Defective Material/Parts**5%
**Value For Money**3%
**Size-Overall**2%
**Ease Of Use**2%
**Durability**2%
**Quality-Overall**2%
**Product Condition**1%
## **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.
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