Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service levels, popularity trends, and more. The rankings reflect our opinion and should be a good starting point for shopping. By purchasing the products we rank, you’ll get the lowest price we found while we may receive a commission at no cost to you, which will help us continue to provide you with value.
Advertising Disclosure
Hydrometers of 2025
Save up to 43% off
- Best Choice
1
ThermoProThermoPro TP49 3 Pieces Digital Hygrometer Indoor Thermometer Humidity Meter Mini Hygrometer with Temperature and Humidity Monitor Outdoor and Room Thermometer
18% OffMain highlights-
Compact and Accurate Monitoring
-
Versatile Use in Various Settings
-
Easy Readability and Quick Adjustments
-
-
How do we rank?
Powerful technology We scan thousands of products and stores, analyzing reviews to find what matters most to users like youCareful review Our team ensures quality, value, and fit based on real user feedbackTrusted insights AI and human analysis guide your decisions, reflecting real user prioritiesReal users impactThousands of users trust our site daily
Based on millions of stores and reviews
Shoppers influence our rankings
Analyzing top stores
- Value for Money
2
ThermoProThermoPro TP50 2 Pieces Digital Hygrometer Indoor Thermometer Room Thermometer and Humidity Gauge with Temperature Humidity Monitor
23% OffMain highlights-
Air Comfort Indicator
-
Indoor Environment Monitoring
-
High Accuracy and Quick Refresh Rate
-
3
Pgzsy12 Pack Pgzsy Mini Small Digital Electronic Temperature Humidity Meters Gauge Indoor Thermometer Hygrometer LCD Display Fahrenheit (℉) for Humidors, Greenhouse, Garden
15% OffMain highlights-
Key Features and Benefits
-
Ideal Use Cases
-
Customer Praise
-
4
ThermoProThermoPro TP49 Digital Hygrometer Indoor Thermometer Humidity Meter Room Thermometer with Temperature and Humidity Monitor Mini Hygrometer Outdoor
23% OffMain highlights-
Highly Accurate Sensors
-
Versatile Use Cases
-
Easy Setup and Readability
-
-
See Today’s Deals & Prices
7
SOLIGTSOLIGT Triple Scale Hydrometer and Glass Test Jar for Wine, Beer, Mead & Cider - ABV, Brix and Gravity Test Kit
41% OffMain highlights-
Accurate Measurements and Easy Reading
-
Ideal for Home Brewing Enthusiasts
-
Customer Praises Efficient Liquid Usage
-
9
GoveeGovee Hygrometer Thermometer H5075, Bluetooth Indoor Room Temperature Monitor Thermometer with Remote App Control, Notification Alerts, 2 Years Data Storage Export(Only Supports 164ft Bluetooth Range)
Main highlights-
Smart Features and Accuracy
-
Ideal for Indoor Gardening
-
Praised for Ease of Use
-
Similar products on Amazon
- Free Shipping
Mini Hygrometer Thermometer Digital Humidity Meter Indoor/Outdoor Humidity Monitor Reptile Thermometer for Humidors Greenhouse Garden Cellar Fahrenheit(℉)/ Celsius(℃) 2 Pack
【Home Hygrometer Thermometer】Mini digital thermometer humidity meter can help you quickly know the temperature and humidity you want to measure, so the portable digital thermometer humidity meter will be a good helper for your work and life.$5.90
- Free Shipping
6 Pack Mini Hygrometer Indoor Humidity Meter, Small Digital Thermometer Humidity Gauge Meter, Indoor Thermometer Hygrometer Monitor Fahrenheit (℉) for Humidor, Thermostat Reptile Tank, Mason Jars
2-in-1 Thermometer & Hygrometer Meter: Equipped with a high-precision sensor, this temperature and humidity meter provides accurate readings, making it ideal for monitoring indoor environments like homes, offices, or greenhouses$6.97
- 26% OffFree Shipping
Humidity Meter Indoor Thermometer 6-Pack Mini Digital Thermometer Hygrometer Indoor Temperature Humidity Meters Gauge LCD Display Fahrenheit (℉) for Humidors, Greenhouse, Reptile Tank, Cellar, Closet
【2-in-1 Temperature and Humidity Meter】: The TeqyAqs mini digital temperature humidity meters gauge with built-in probe, electronic thermometer and hygrometer for measuring temperature and humidity for indoor use$6.58
$8.99 (26% Off) - Free Shipping
2 Pack Mini Digital Hygrometer Thermometer Gauge, Indoor Outdoor Temperature Humidity Meter for Greenhouse Humidors Incubators Reptile Terrarium Jars, Fahrenheit (℉) or Celsius(℃) (2)
1-Widely Applicable for home, office, car, schools, hotels, laboratories, kindergartens, aquaculture, instrument workshop, libraries, factories, reptile terrarium and places equipped with air condition, etc.$6.91
- Free Shipping
Hydrometer - Triple Scale Hydrometer for Home Brewing - Beer and Wine
Triple Scale Hydrometer$7.19
- Free Shipping
EZRED SP101 Battery Hydrometer, Factory
BATTERY HYDROMETER: This battery tester is made to stand up to tough treatment in service stations & garages. It's designed so that both customer & technician can see the state of the battery acid..Fit Type: Universal$11.70
- Free Shipping
Circrane Hydrometer & Glass Test Jar Set, Triple Scale Alcohol Hydrometer with Glass Cylinder for Brew Beer, Wine, Mead and Kombucha, ABV, Brix and Gravity Test Kit, Home Brewing Supplies
[The Accurate Hydrometer & Glass Cylinder Kit]: Whether your forte is beer, wine, mead or kombucha, make sure your alcohol content, sweetness or gravity measurements are right in the sweet spot with our combo test kit. Our user-friendly hydrometer helps you guard against errors that could ruin your product, while our EXTRA NARROW measuring cylinder helps you waste less of your precious homebrew and get the best readings every single time.$11.99
$12.99 - 17% OffFree Shipping
Coralife Aquarium Fish Tank Deep Six Hydrometer For Measuring Water Salinity PPT and Specific Gravity
Coralife is one of the market’s leading manufacturers of premium aquarium products.$11.46
$13.84 (17% Off) - Free Shipping
XLUX Soil Moisture Meter, Plant Water Monitor, Hygrometer Sensor for Gardening, Farming, Indoor and Outdoor Plants, No Batteries Required
Accurate Soil Moisture Detection:The XLUX Soil Moisture Meter can tell you if the soil deep inside your pot or garden is dry, moist or wet; whereas your eyes and fingers can only determine the moisture level of the soil surface.$12.99
- 10% OffFree Shipping
10 Pack Mini Small Digital Electronic Temperature Humidity Meters Gauge Indoor Thermometer Hygrometer LCD Display Fahrenheit (℉) for Humidors Greenhouse Garden Cellar Jars Closet Etc
Easy To Install: Reptile Thermometer Mini Digital Hygrometer Thermometer is Easy to know current temperature and humidity,Embedded opening size (1.81*1.06 inch) or fixed with double-sided tape$8.99
$9.99 (10% Off)