SwitchBot Meter Plus is the top pick among smart temperature and humidity sensors under $20, rated 4.5 stars across 3,534 customer reviews.
SwitchBotMeter Plus
15% OFF$17.99$15.29
YoLinkSmart Wireless Thermometer Hygrometer
5% OFF$16.99$16.14
Govee LifeHygrometer Thermometer H5104
$13.99
SwitchBotMeter Pro
$19.99
SwitchBotMeter
$14.99
SwitchBotIndoor/Outdoor Thermo-Hygrometer
15% OFF$14.99$12.74
AqaraTemperature and Humidity Sensor
$19.98
SonoffSNZB-02P Temperature & Humidity Sensor
$16.90
SonoffLCD Smart Temperature Humidity Sensor
15% OFF$15.90$13.52
SonoffSNZB-02WD
$19.90
X-SenseSmart WiFi Indoor Thermometer
19% OFF$15.99$12.98
SonoffSNZB-02 Temperature & Humidity Sensor
$16.99
CentraliteTemperature & Humidity Sensor
$19.95
MerossSmart Temperature and Humidity Sensor
$14.99
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Frequently asked questions
What are the best smart temperature and humidity sensors under $20?
SwitchBot Meter Plus, YoLink Smart Wireless Thermometer Hygrometer and Govee Life Hygrometer Thermometer H5104 lead our ranking of smart temperature and humidity sensors under $20, ordered by customer rating weighted by how many reviews back it. The full list compares 14 products in this price range.
How many smart temperature and humidity sensors cost less than $20?
This page tracks 14 smart temperature and humidity sensors under $20 from 8 brands, with prices starting at $12.74.
Are these prices up to date?
Prices come from each product's Amazon listing and are re-checked continuously, so every card shows the latest price we have. A product whose price rises above $20 drops off this list on the next update.
Looking for more than $20?
See all the temperature & humidity sensors in the catalog, compared side by side on specs, price and rating.