---
title: "Mercury Thermometer — $23K/mo Amazon US Product Research"
canonical_url: "https://flapen.com/research/us/health-household/mercury-thermometer"
last_updated: "2026-08-12T14:06:29.030Z"
locale: en
meta:
description: "Amazon product research for mercury thermometer: $23K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for mercury thermometer: $23K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Mercury Thermometer — $23K/mo Amazon US Product Research"
---
# **Mercury Thermometer**
**Skip it**
Soft demand (-30.8% this quarter) — this niche doesn't clear our bar today.
Market size 50Growth 10Conversion 69Competition 15Returns 96Price range 61Avg price 58Brand share 25Review moat 41Quality gap 82
**Returns**
**Incredible****0.8%**
return rate — above 5% kills the launch gate
**Quality gap**
**Great****4.2★**
avg incumbent rating — lower means beatable quality
**Conversion**
**Good****6.3%**
search→purchase rate — share of searches ending in a sale
**Price range**
**Good****$6.90–$27.90**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Good****$12.94**
avg listing price — sweet spot $15–$100
**Market size**
**Okay****$272K**
$272K/yr · 334K searches
**Review moat**
**Okay****2,409.29**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Okay****90%**
top-5 brand share — brands hold most of the demand
**Competition**
**Bad****81%**
top-5 click share — a locked-up shelf
**Growth**
**Bad****-30.8%**
90-day search growth — must beat 0% to launch
## **Is mercury thermometer profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, mercury thermometer is a $272K/yr Amazon United States market (334K searches/yr). The top 5 brands hold 90% of demand. Demand peaks in Jan–Feb–Sep. Verdict: Skip it — 46/100.
Data updated Jul 14, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **mercury thermometer market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **20K–25K**
- avg 1,500–2,000/product
- **Revenue / yr**
- **$259K–$324K**
- units × avg price
- **Conversion rate**
- **6.3%**
- **Avg BSR**
- **#54**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **93%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **77 months**
- **Avg seller age**
- **173 days**
## **Competition: brands, sellers & click share**
The top 5 products capture 81% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**10 **▲rising
**Sellers**
**50**
**Top-5 brand share**
**90%**
Top 20: 100%
**Top-5 click share**
**81%**
Top 20: 100%
**Open market**
**7%**
- JOINPAYA34% - TOYANDONA24% - DEARMAMY23% - MAGICLULU4% - SP Scienceware3% - HARIKA LIFE3% - Open — no brand owns it (4 brands, 7%)
## **mercury thermometer demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -30.8% search growth over the last 90 days.
15K10KSpike '24Spike '25 seasonSepDecMarJunAugNovMarMay
Peak months: Jan, Feb, Sep · busiest ÷ quietest = 2.3×
[**Open Trend **](https://flapen.com/research/us/health-household/mercury-thermometer/trend)
## **Top mercury thermometer search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **mercury thermometer**95K/yr-26.5%4.5% conv. - **termometro de mercurio**58K/yr-37.8%7.4% conv. - **glass thermometer**39K/yr-25.0%3.8% conv. - **mercury thermometer for adults**24K/yr-41.8%8.6% conv. - **termmetro de mercurio**18K/yr-15.5%5.0% conv. - **glass thermometer for adults**13K/yr-34.7%6.9% conv. - **thermometer mercury**11K/yr-34.3%5.0% conv. - **manual thermometer**7K/yr-17.5%2.5% conv. - **old fashioned thermometer**6K/yr-17.5%2.9% conv. - **glass thermometers**5K/yr-24.8%1.7% conv. [**All search terms **](https://flapen.com/research/us/health-household/mercury-thermometer/search-terms)
## **Top mercury thermometer products & what they sell for**
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%10%$27K20%$54K30%$82K40%$109K1101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 14 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**JOINPAYA 2Pc Glass Oral Temperature Adult: Free Clinic Armpit Fast Reading Fever Indicator**JOINPAYA**$10.35**4.4★1,486 rev](https://www.amazon.com/dp/B0D2RHG86Y) [2**Glass Oral Adults Classic Accurate Temperature Measurement for Fever Oral Armpit Families Clinic**DEARMAMY**$10.01**3.3★780 rev](https://www.amazon.com/dp/B0DFH64CCP) [3**TOYANDONA 3PCS Glass Temperatures Measurement Adult - General Use Temperature Testing Tools Accurate Temperature Measurement for Families Dual Scale**TOYANDONA**$11.51**4.3★419 rev](https://www.amazon.com/dp/B0FJFKJQCG) [4**Glass Cuban Temperature Thermometers: Thermometers for Fever - Old Fashioned Axillary & Oral Thermometer for Adults Kids Elderly &**JOINPAYA**$14.33**4.5★72 rev](https://www.amazon.com/dp/B0FWJ1L37C) [5**SP H-B DURAC General Purpose Lab Thermometer Total Immersion Glass Liquid Thermometer for Laboratories Universities Food and Beverage Processing -20 to 150 Degrees Celsius**SP Scienceware**$12.36**4.0★1,154 rev](https://www.amazon.com/dp/B00551ND12)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**JOINPAYA Glass Thermometer: Cuban Temperature Thermometer for Fever - Traditional Old Fashioned for Adults Kids & - 6Pack**JOINPAYA**$16.48**9 rev3mo ago](https://www.amazon.com/dp/B0GX6F8Z1V) [**Glass Cuban Temperature Thermometers: Thermometers for Fever - Old Fashioned Axillary & Oral Thermometer for Adults Kids Elderly &**JOINPAYA**$14.33**72 rev9mo ago](https://www.amazon.com/dp/B0FWJ1L37C) [**Toyvian Accurate Temperature Adult 2pcs Dual Scale Glass Temperature Measurement Tool for Home Use - Fast Reading**Toyvian**$8.02**15 rev10mo ago](https://www.amazon.com/dp/B0FQP4WNFX) [**MAGICLULU 5Pcs Oral Temperature for Adults Dual Scale & Glass Traditional Underarm Body Temperature with Case Accurate Measurement for Kids Babies Elderly Home Family Clinics Fever Indicator**MAGICLULU**$16.77**153 rev11mo ago](https://www.amazon.com/dp/B0FMDPJL4F) [**TOYANDONA 3PCS Glass Temperatures Measurement Adult - General Use Temperature Testing Tools Accurate Temperature Measurement for Families Dual Scale**TOYANDONA**$11.51**419 rev11mo ago](https://www.amazon.com/dp/B0FJFKJQCG)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**JOINPAYA Glass Thermometer: Cuban Temperature Thermometer for Fever - Traditional Old Fashioned for Adults Kids & - 6Pack**JOINPAYA**$16.48**3.8★**▲ 381%**](https://www.amazon.com/dp/B0GX6F8Z1V) [**Toyvian Accurate Temperature Adult 2pcs Dual Scale Glass Temperature Measurement Tool for Home Use - Fast Reading**Toyvian**$8.02**3.9★**▲ 174%**](https://www.amazon.com/dp/B0FQP4WNFX) [**Glass Cuban Temperature Thermometers: Thermometers for Fever - Old Fashioned Axillary & Oral Thermometer for Adults Kids Elderly &**JOINPAYA**$14.33**4.5★**▲ 95%**](https://www.amazon.com/dp/B0FWJ1L37C) [**TOYANDONA 3PCS Glass Temperatures Measurement Adult - General Use Temperature Testing Tools Accurate Temperature Measurement for Families Dual Scale**TOYANDONA**$11.51**4.3★**▲ 69%**](https://www.amazon.com/dp/B0FJFKJQCG) [**Glass Oral Adults Classic Accurate Temperature Measurement for Fever Oral Armpit Families Clinic**DEARMAMY**$10.01**3.3★**▲ 38%**](https://www.amazon.com/dp/B0DFH64CCP)
**~~View all trending →~~**
## **What reviews say buyers love and hate about mercury thermometer**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Ease Of Use**23%
*“Easy to read”*
**Quality-Overall**12%
*“Excellent product”*
**Value For Money**12%
*“Great value”*
**Advertised Vs Actual Product**12%
*“AS DESCRIBED”*
**Efficiency**9%
*“It was doing so well”*
**Temperature Control**7%
*“Good thermometer and easy to use,”*
**Accuracy-Overall**6%
*“Fast and accurate”*
**Design-Overall**2%
*“The design is simple”*
**Durability**2%
*“Pretty durable”*
**Battery Life**1%
*“It provides accurate results without relying on batteries or electronics”*
### **What buyers complain about **
**Functionality-Overall**16%
*“Didn't work”*
**Quality-Overall**12%
*“Awful quality control”*
**Measurement/Reading Accuracy**10%
*“Incorrect readings”*
**Durability**8%
*“Broke right away”*
**Ease Of Use**7%
*“Difficult to read”*
**Battery Life**7%
*“battery was dead”*
**Accuracy-Overall**7%
*“Inaccurate readings”*
**Value For Money**5%
*“Cheap”*
**Advertised Vs Actual Product**4%
*“This is misleading advertising”*
**Temperature Control**4%
*“Does not measure the temperature accurately at all”*
### **Top return reasons **
**Measurement/Reading Accuracy**32%
**Functionality-Overall**19%
**Accuracy-Overall**8%
**Heating**7%
**Temperature Control**7%
**Display-Overall**6%
**Value For Money**5%
**Advertised Vs Actual Product**3%
**Defective Material/Parts**2%
**Battery Life**2%
## **Common mercury thermometer questions**
- **Is mercury thermometer profitable to sell on Amazon United States?**
- The niche generates $272K/yr across 14 tracked products. 2 of 6 products launched in the last 360 days are still selling. 90-day search growth is -30.8%. Flapen's verdict: Skip it (46/100).
- **How competitive is the mercury thermometer niche?**
- 10 brands and 50 sellers compete. The top 5 products take 81% of clicks and top 5 brands hold 90% of demand.
- **What do buyers complain about in mercury thermometer?**
- Top complaints mined from reviews: Functionality-Overall, Quality-Overall, Measurement/Reading Accuracy. The return rate is 0.8%.
- **When does demand for mercury thermometer peak?**
- Demand peaks in Jan–Feb–Sep; the busiest month runs 2.3× the quietest.
- **What does it cost to enter the mercury thermometer niche?**
- Listings span $6.90–$27.90; the average listing price is $12.94 (sweet spot $15–$100). The average incumbent carries 2,409 reviews — the moat a new listing must climb.
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