Is glass thermometer profitable to sell on Amazon United States?

The niche generates $59K/yr across 24 tracked products. 2 of 5 products launched in the last 360 days are still selling. 90-day search growth is -27.2%. Flapen's verdict: Worth a look (50/100).

How competitive is the glass thermometer niche?

17 brands and 36 sellers compete. The top 5 products take 64% of clicks and top 5 brands hold 70% of demand.

What do buyers complain about in glass thermometer?

Top complaints mined from reviews: Functionality-Overall, Quality-Overall, Advertised Vs Actual Product. The return rate is 0.6%.

When does demand for glass thermometer peak?

Demand peaks in Jan; the busiest month runs 1.7× the quietest.

What does it cost to enter the glass thermometer niche?

Listings span $7.22–$47.20; the average listing price is $15.69 (sweet spot $15–$100). The average incumbent carries 677 reviews — the moat a new listing must climb.

glass thermometer

Worth a look

Shows low returns (0.6%), but soft demand (-27.2% this quarter) keeps it on the watch list.

Returns

Incredible0.6%

return rate — above 5% kills the launch gate

Quality gap

Great4.2★

avg incumbent rating — lower means beatable quality

Price range

Great$7.22–$47.20

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

Avg price

Great$15.69

avg listing price — sweet spot $15–$100

Review moat

Good677.33

avg incumbent reviews — the moat a new listing must climb

Brand share

Good70%

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

Conversion

Good4.9%

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

Competition

Okay64%

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

Market size

Bad$59K

$59K/yr · 78K searches

Growth

Bad-27.2%

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

According to Flapen's Amazon United States niche tracking, glass thermometer is a $59K/yr Amazon United States market (78K searches/yr). The top 5 brands hold 70% of demand. Demand peaks in Jan. Verdict: Worth a look — 50/100.

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

glass thermometer market data

Units sold / yr: 4K–5K; avg 100–250/product
Revenue / yr: $63K–$78K; units × avg price
Conversion rate: 4.9%
Avg BSR: #245
Page quality: 0%
Prime: 96%
Sponsored: 83%
Out of stock: 0.0%
Avg brand age: 78 months
Avg seller age: 186 days

Competition & brand share

The top 5 products take 64% of clicks — established leaders, but buyers still shop beyond them.

Brands

17 rising

Sellers

Top-5 brand share

70%

Top 20: 100%

Top-5 click share

64%

Top 20: 96%

Open market

26%

SP Scienceware22%
JOINPAYA15%
United Scientific13%
DEARMAMY12%
TOYANDONA7%
Relaxweex4%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -27.2% search growth over the last 90 days.

Peak months: Jan · busiest ÷ quietest = 1.7×

Open Trend

Top glass thermometer search terms

glass thermometer39K/yr -25.0%4.2% conv.
lab thermometer16K/yr -31.3%4.3% conv.
glass thermometers5K/yr -24.8%2.0% conv.
thermometer glass5K/yr -32.0%5.1% conv.
scientific thermometer5K/yr -24.5%4.1% conv.
science thermometer4K/yr -27.7%4.2% conv.
laboratory thermometer3K/yr -30.4%2.8% conv.

All search terms

Top glass 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.

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

All 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

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$12.364.0★1,154 rev

United Scientific Red Spirit-Filled Thermometer Analog Display 12 Length Partial Immersion Dual Scale -20 to 150C / 0 to 300F Temperature Range

United Scientific$7.224.4★60 rev

JOINPAYA 2Pc Glass Oral Temperature Adult: Free Clinic Armpit Fast Reading Fever Indicator

JOINPAYA$10.354.4★1,486 rev

Glass Oral Adults Classic Accurate Temperature Measurement for Fever Oral Armpit Families Clinic

DEARMAMY$10.013.3★780 rev

TOYANDONA 3PCS Glass Temperatures Measurement Adult - General Use Temperature Testing Tools Accurate Temperature Measurement for Families Dual Scale

TOYANDONA$11.514.3★419 rev

Newest

by launch date

Ipetboom 3pcs Glass Temperature Measurement Adult - Dual Scale General Use Temperatures Testing Tools Accurate Measurement for Families

Ipetboom$11.3328 rev

8mo ago

Glass Cuban Temperature Thermometers: Thermometers for Fever - Old Fashioned Axillary & Oral Thermometer for Adults Kids Elderly &

JOINPAYA$14.3372 rev

9mo ago

Saysurey 4 Pcs Lab Thermometer 12 Inch Celsius Laboratory Red Liquid in Glass Thermometer Total Immersion 0 to 200 Temperature Meter for Science University Food and Beverage Processing Beer Wine

Saysurey$14.774 rev

9mo ago

Toyvian Accurate Temperature Adult 2pcs Dual Scale Glass Temperature Measurement Tool for Home Use - Fast Reading

Toyvian$8.0215 rev

10mo ago

TOYANDONA 3PCS Glass Temperatures Measurement Adult - General Use Temperature Testing Tools Accurate Temperature Measurement for Families Dual Scale

TOYANDONA$11.51419 rev

11mo ago

What buyers say about glass thermometer

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

What buyers love

Quality-Overall25%

“Reliable product”

Ease Of Use16%

“Easy to use”

Advertised Vs Actual Product14%

“As advertised”

Efficiency11%

“Works perfectly”

Value For Money8%

“definitely worth the price”

Temperature Control5%

“good basic thermometer with a wide temperature range”

Ease Of Cleaning3%

“Cleans easy”

Durability2%

“Pretty durable”

Design-Overall2%

“The design feels solid and well made, with clear markings that make readings easy to see and understand”

Battery Life2%

“It provides accurate results without relying on batteries or electronics”

What buyers complain about

Functionality-Overall26%

“Not effective”

Quality-Overall15%

“Lacking quality control”

Advertised Vs Actual Product10%

“This is misleading advertising”

Ease Of Use10%

“Hard to see”

Durability6%

“Broke after a month”

Size-Overall5%

“Numbers are so small they are unreadable”

Value For Money5%

“There's a reason they are so cheap”

Defective Material/Parts3%

“One of the thermometers is broken”

Heating2%

“Does not give the correct temperature”

Battery Life2%

“Battery issue”

Top return reasons

Measurement/Reading Accuracy20%

Functionality-Overall16%

Size-Overall12%

Advertised Vs Actual Product11%

Heating9%

Value For Money8%

Defective Material/Parts5%

Temperature Control4%

Display-Overall3%

Water Resistance2%

Common questions

Is glass thermometer profitable to sell on Amazon United States?: The niche generates $59K/yr across 24 tracked products. 2 of 5 products launched in the last 360 days are still selling. 90-day search growth is -27.2%. Flapen's verdict: Worth a look (50/100).
How competitive is the glass thermometer niche?: 17 brands and 36 sellers compete. The top 5 products take 64% of clicks and top 5 brands hold 70% of demand.
What do buyers complain about in glass thermometer?: Top complaints mined from reviews: Functionality-Overall, Quality-Overall, Advertised Vs Actual Product. The return rate is 0.6%.
When does demand for glass thermometer peak?: Demand peaks in Jan; the busiest month runs 1.7× the quietest.
What does it cost to enter the glass thermometer niche?: Listings span $7.22–$47.20; the average listing price is $15.69 (sweet spot $15–$100). The average incumbent carries 677 reviews — the moat a new listing must climb.