humidity meter
Worth a lookShows a $5.0M/yr market, but a deep review moat (32,072 avg reviews) keeps it on the watch list.
Market size
Incredible$5.0M$5.0M/yr · 3.9M searches
Returns
Great1.1%return rate — above 5% kills the launch gate
Conversion
Great11.3%search→purchase rate — share of searches ending in a sale
Price range
Good$5.60–$27.57cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Okay78%top-5 brand share — brands hold most of the demand
Avg price
Okay$11.21avg listing price — sweet spot $15–$100
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Competition
Okay65%top-5 click share — leaders hold, buyers still browse
Growth
Bad-7.2%90-day search growth — must beat 0% to launch
Review moat
Bad32,071.69avg incumbent reviews — the moat a new listing must climb
According to Flapen's Amazon United States niche tracking, humidity meter is a $5.0M/yr Amazon United States market (3.9M searches/yr). The top 5 brands hold 78% of demand. Demand peaks in Jan–Dec. Verdict: Worth a look — 55/100.
Data updated Jul 15, 2026 · scored weekly · How we score niches
humidity meter market data
- Units sold / yr
- 400K–500K
- avg 25,000–30,000/product
- Revenue / yr
- $4.5M–$5.6M
- units × avg price
- Conversion rate
- 11.3%
- Avg BSR
- #7
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 94%
- Out of stock
- 0.0%
- Avg brand age
- 50 months
- Avg seller age
- 159 days
Competition & brand share
The top 5 products take 65% of clicks — established leaders, but buyers still shop beyond them.Brands
12 falling
Sellers
22
Top-5 brand share
78%
Top 20: 100%
Top-5 click share
65%
Top 20: 100%
Open market
18%
- TempPro51%
- Antonki9%
- Ayawiss7%
- DOQAUS6%
- Serundo Auto5%
- Govee5%
- Open — no brand owns it (6 brands, 18%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -7.2% search growth over the last 90 days.Peak months: Jan, Dec · busiest ÷ quietest = 1.8×
Top humidity meter search terms
- hygrometer645K/yr
- humidity meter534K/yr
- temperature and humidity monitor290K/yr
- humidity monitor231K/yr
- room thermometer indoor281K/yr
- indoor thermometer269K/yr
- hygrometer indoor humidity189K/yr
- thermometer for house234K/yr
- room thermometer164K/yr
- temperature gauge123K/yr
Top humidity meter 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 16 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
TempPro TP50 Digital Hygrometer Indoor Thermometer Room Thermometer and Humidity Gauge with Temperature Humidity Monitor(Previously ThermoPro)
TempPro$10.884.6★154,357 rev
TempPro TP49 Digital Hygrometer Indoor Thermometer Humidity Meter Room Thermometer with Temperature and Humidity Monitor Mini Hygrometer Outdoor Thermometer (Previously ThermoPro)
TempPro$9.454.6★62,281 rev
Antonki 2 Pack Room Thermometer for Home Hygrometer Indoor Humidity Meter Gauge Digital Temperature and Humidity Monitor Sensor for House Terrarium Incubator Greenhouse - Battery Included
Antonki$9.534.5★35,594 rev
Ayawiss Room Thermometer Indoor Hygrometer Humidity Meter Gauge Digital Temperature and Humidity Sensor Monitor for Home Office House Pets Plants - AAA Battery Included
Ayawiss$5.604.4★1,451 rev
DOQAUS Digital Hygrometer Indoor Thermometer Humidity Meter Room Thermometer with 5s Fast Refresh Accurate Temperature Humidity Monitor for Home Bedroom Baby Room Office Greenhouse Cellar (Black)
DOQAUS$7.164.4★19,233 rev
Newest
by launch date
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$7.161,586 rev
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$7.94714 rev
Mini Hygrometer Thermometer Digital Humidity Meter Indoor/Outdoor Humidity Monitor Reptile Thermometer for Greenhouse Garden Cellar Fahrenheit()/ Celsius() 2 Pack
Serundo Auto$5.973,331 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$8.121,920 rev
Ayawiss Room Thermometer Indoor Hygrometer Humidity Meter Gauge Digital Temperature and Humidity Sensor Monitor for Home Office House Pets Plants - AAA Battery Included
Ayawiss$5.601,451 rev
Trending
90-day click momentumAyawiss Room Thermometer Indoor Hygrometer Humidity Meter Gauge Digital Temperature and Humidity Sensor Monitor for Home Office House Pets Plants - AAA Battery Included
Ayawiss$5.604.4★
TempPro TP50 3 Pieces Digital Hygrometer Indoor Thermometer Room Thermometer and Humidity Gauge with Temperature Humidity Monitor (Previously ThermoPro)
TempPro$27.574.6★
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$7.944.5★
SECRUI Digital Hygrometer Thermometer for Room Temperature Humidity Meter Indoor Thermometer Accuracy Calibration LCD Temperature Sensor with Maximum and Minimum Records TH1 White
SECRUI$8.694.6★
TempPro TP50 2 Pieces Digital Hygrometer Indoor Thermometer Room Thermometer and Humidity Gauge with Temperature Humidity Monitor(Previously ThermoPro)
TempPro$21.074.6★
What buyers say about humidity meter
What buyers praise and complain about, mined from review topics.What buyers love
“Best value”
“Easy to Read”
“Works as promised”
“Great quality, price and arrives ready to use”
“Does its job well”
“They fit just about anywhere”
“Pretty accurate”
“Battery life is great”
“Temperature is accurate”
“Made with durable materials, feels quality”
What buyers complain about
“REALLY SMALL”
“poor execution in terms of bad accuracy”
“Need better quality control”
“replacing battery didn't help”
“Fell apart”
“Stopped working”
“Display broken”
“Too expensive”
“Doesnt connect to app”
“False advertising”
Top return reasons
Common questions
- Is humidity meter profitable to sell on Amazon United States?
- The niche generates $5.0M/yr across 16 tracked products. 90-day search growth is -7.2%. Flapen's verdict: Worth a look (55/100).
- How competitive is the humidity meter niche?
- 12 brands and 22 sellers compete. The top 5 products take 65% of clicks and top 5 brands hold 78% of demand.
- What do buyers complain about in humidity meter?
- Top complaints mined from reviews: Size-Overall, Measurement/Reading Accuracy, Quality-Overall. The return rate is 1.1%.
- When does demand for humidity meter peak?
- Demand peaks in Jan–Dec; the busiest month runs 1.8× the quietest.
- What does it cost to enter the humidity meter niche?
- Listings span $5.60–$27.57; the average listing price is $11.21 (sweet spot $15–$100). The average incumbent carries 32,072 reviews — the moat a new listing must climb.