small thermometer
Worth a lookShows low returns (0.8%), but a small market ($49K/yr) keeps it on the watch list.
Returns
Incredible0.8%return rate — above 5% kills the launch gate
Brand share
Great52%top-5 brand share — no brand owns this niche
Price range
Great$5.10–$68.03cheapest to priciest tracked listing — scored on the share inside $15–$100
Avg price
Great$17.47avg listing price — sweet spot $15–$100
Conversion
Great7.1%search→purchase rate — share of searches ending in a sale
Competition
Good50%top-5 click share — leaders hold, buyers still browse
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Growth
Bad-8.2%90-day search growth — must beat 0% to launch
Review moat
Bad15,644.23avg incumbent reviews — the moat a new listing must climb
Market size
Bad$49K$49K/yr · 40K searches
According to Flapen's Amazon United States niche tracking, small thermometer is a $49K/yr Amazon United States market (40K searches/yr). The top 5 brands hold 52% of demand. Demand peaks in Sep–Oct–Nov–Dec. Verdict: Worth a look — 54/100.
Data updated Jul 10, 2026 · scored weekly · How we score niches
small thermometer market data
- Units sold / yr
- 3K–3K
- avg 100–250/product
- Revenue / yr
- $44K–$52K
- units × avg price
- Conversion rate
- 7.1%
- Avg BSR
- #41
- Page quality
- 0%
- Prime
- 96%
- Sponsored
- 85%
- Out of stock
- 2.7%
- Avg brand age
- 61 months
- Avg seller age
- 177 days
Competition & brand share
The top 5 products take 50% of clicks — established leaders, but buyers still shop beyond them.Brands
24 rising
Sellers
59
Top-5 brand share
52%
Top 20: 94%
Top-5 click share
50%
Top 20: 93%
Open market
42%
- Munchkin26%
- TempPro8%
- Serundo Auto7%
- WEIMELTOY6%
- AcuRite6%
- ANFBYOH6%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -8.2% search growth over the last 90 days.Peak months: Sep, Oct, Nov, Dec · busiest ÷ quietest = 4.1×
Top small thermometer search terms
- mini thermometer24K/yr
- mini hydrometer5K/yr
- calibrated hygrometer3K/yr
- gun safe humidity monitor4K/yr
- munchkin thermometer2K/yr
- munchkin mini thermometer2K/yr
- munchkin thermometer mini105/yr
Top small 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 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Munchkin Forehead Baby Thermometer for Newborns Kids and Adults No Touch Infrared Fast 1 Second Digital Reading Travel Case White
Munchkin$24.324.4★246 rev
Mini Hygrometer Thermometer Digital Humidity Meter Indoor/Outdoor Humidity Monitor Reptile Thermometer for Greenhouse Garden Cellar Fahrenheit()/ Celsius() 2 Pack
Serundo Auto$5.974.5★3,288 rev
Mini Hygrometer Digital Thermometer Humidity Meter 2 Pack Hygrometer Thermometers Indoor/Outdoor Humidity Monitor Reptile Thermometer for Greenhouse Garden Cellar Fahrenheit()/ Celsius()
WEIMELTOY$5.104.4★388 rev
AcuRite Portable Digital Thermometer for Indoor or Outdoor Temperature with Carabiner Clip (00333)
AcuRite$10.844.0★681 rev
6-Pack Mini Hygrometer Indoor Humidity Meter Mini Digital Thermometer Humidity Gauge Meter Indoor Thermometer Hygrometer Monitor Fahrenheit () for Reptile Thermostat Jars Reptile Fridge
ANFBYOH$8.134.5★1,903 rev
Newest
by launch date
Forehead Thermometer for Adults Kids Non-Contact Baby Thermometer Medical Infrared Digital Thermometer Instant and Accurate Reading with LCD Display Fever Alarm Mute Code Portable Mini
femometer$12.4631 rev
Rechargeable Medical Forehead Thermometer for Adults and Children Black Non-Contact Digital Thermometer with Fast 1-Second Touchless Reading Black
aloway$19.12190 rev
Mini Hygrometer Digital Thermometer Humidity Meter 2 Pack Hygrometer Thermometers Indoor/Outdoor Humidity Monitor Reptile Thermometer for Greenhouse Garden Cellar Fahrenheit()/ Celsius()
WEIMELTOY$5.10388 rev
6 Pack Mini Hygrometer Indoor Humidity Meter Small Digital Thermometer Humidity Gauge Meter Indoor Thermometer Hygrometer Monitor Fahrenheit () for Thermostat Reptile Tank Mason Jars
JJMTDS$7.161,562 rev
Humidity Meter Indoor Thermometer 6-Pack Mini Digital Thermometer Hygrometer Indoor Temperature Humidity Meters Gauge LCD Display Fahrenheit () for Greenhouse Reptile Tank Cellar Closet
TeqyAqs$7.06908 rev
Trending
90-day click momentumForehead Thermometer for Adults Kids Non-Contact Baby Thermometer Medical Infrared Digital Thermometer Instant and Accurate Reading with LCD Display Fever Alarm Mute Code Portable Mini
femometer$12.464.5★
Rechargeable Medical Forehead Thermometer for Adults and Children Black Non-Contact Digital Thermometer with Fast 1-Second Touchless Reading Black
aloway$19.124.2★
Hornady Digital Hygrometer 95909 - Indoor Temperature and Humidity Monitor with Touchscreen LCD Display - Ideal Room Thermometer Hygrometer for Gun Safes & Cabinets Closets Workbench & More
Hornady$24.284.6★
WWHAKO 4-Pack Mini Hygrometer Thermometer Indoor Outdoor Round Humidity Meter Small Digital LCD Monitor Thermometer Temperature Gauge Humidity Sensor () or () for Reptile Thermostat Jars
wwhako$7.934.5★
TRACEABLE - AO-90080-06 Traceable Thermometer with Clock Humidity Monitor and Calibration
Digi-Sense$68.034.2★
What buyers say about small thermometer
What buyers praise and complain about, mined from review topics.What buyers love
“Easy to Read”
“Fair price”
“As Advertised”
“Good quality build and screen”
“Does its job well”
“It happy with the size”
“the temperature is accurate”
“Battery life is good so far”
“Durable and accurate”
“Seems accurate”
What buyers complain about
“Wildly Inaccurate”
“The units are small”
“Need better quality control”
“Did Not Work”
“The battery was completely dead”
“Broke with in a week”
“Temperature readings off”
“Its a little pricey”
“the display is completely unreadable”
“Inaccurate website description”
Top return reasons
Common questions
- Is small thermometer profitable to sell on Amazon United States?
- The niche generates $49K/yr across 26 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -8.2%. Flapen's verdict: Worth a look (54/100).
- How competitive is the small thermometer niche?
- 24 brands and 59 sellers compete. The top 5 products take 50% of clicks and top 5 brands hold 52% of demand.
- What do buyers complain about in small thermometer?
- Top complaints mined from reviews: Measurement/Reading Accuracy, Size-Overall, Quality-Overall. The return rate is 0.8%.
- When does demand for small thermometer peak?
- Demand peaks in Sep–Oct–Nov–Dec; the busiest month runs 4.1× the quietest.
- What does it cost to enter the small thermometer niche?
- Listings span $5.10–$68.03; the average listing price is $17.47 (sweet spot $15–$100). The average incumbent carries 15,644 reviews — the moat a new listing must climb.