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Best hydrometers - August 2025

Last Updated - August 25, 2025

1
Best Choice
11% Off

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

ThermoPro
11% Off

ThermoPro TP49 3 Pieces Digital Hygrometer Indoor Thermometer Humidity Meter Mini Hygrometer with Temperature and Humidity Monitor Outdoor and Room Thermometer

ThermoPro

$23.99

$26.99
(11% Off)

More Details
Main highlights
- Multiple Placement Options: This humidistat has 3 placement options - Tabletop Stand / Magnetic Back / Hanging Mount, place the wall thermometer anywhere you wish such as living room, baby room, kitchen, greenhouse, guitar room, office or cellar
- Highly Accurate Sensors: This temperature humidity sensor features a high accuracy of +/-1°F/°C and +/-2% to 3%RH, making it ideal for measuring dynamic environments like greenhouses
- Fast Refresh Rate: This digital indoor thermometer refreshes every 10 seconds to provide the latest updates for temperature and humidity readings
- Face Icon Comfort Indicator: Humidity temperature gauge features face icons to indicate DRY/COMFORT/WET air conditions, quickly informs you how to adjust your humidifier or dehumidifier to achieve optimal comfort
- Compact Display with Large Digits: This digital thermometer indoor outdoor features a compact LCD display with large bold digits, allowing you to read the room thermometer indoor from any angle and distance
$23.99
$26.99 (11% Off)
2
Best Value
38% Off

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

SOLIGT
38% Off

SOLIGT Triple Scale Hydrometer and Glass Test Jar for Wine, Beer, Mead & Cider - ABV, Brix and Gravity Test Kit

SOLIGT

$18.98

$30.99
(38% Off)

More Details
Main highlights
- Save precious liquid- You only need 125ml rather than 250ml beer or wine for testing. Our jar is with narrow opening plus tall enough to help you get the best readings. Waste less, drink (or share) more!
- Perfect packaging- All of our home brewing supplies and equipment are packed in heart designed package box and is drop tested to minimize breakage, which makes it a perfect gift for your friends, family and colleagues.
- Complete Set for Home Brewer- Package includes 1*triple scale hydrometer, 1*clear glass cylinder test jar, 1* bottle brush made of stainless steel, 1*sturdy storage case to protect hydrometer from breakage, 1* instruction sheet with conversion chart and 1*microfiber cleaning cloth.
- Accurate & easy to read- Get the perfect measuring result with our high quality hydrometer which comes with detailed markings on specific gravity from 0.99-1.17, brix /balling from 0-35 and potential alcohol by volume from 0%-20% and our glass test tube which you can easily read - for nearly all of your spirit-making needs!
$18.98
$30.99 (38% Off)
3

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

ThermoPro

ThermoPro TP50 Digital Hygrometer Indoor Thermometer Room Thermometer and Humidity Gauge with Temperature Humidity Monitor

ThermoPro

$15.99

More Details
Main highlights
- Practical Design: This indoor room thermometer features a tabletop stand and a magnetic back, place the temperature monitor on your counter or fridge; °F/°C selector; Powered by an AAA battery (included)
- High Accuracy & Quick Refresh Rate: This inside thermometer features a high accuracy of ±2–3%RH and ±1°F, making it ideal for measuring fluctuating readings like those found in a greenhouse; Data measurements are updated every 10 seconds to give you the latest updates on your environment
- High & Low Records: This hygrometer digital thermometer displays high/low temperature and humidity levels to allow you to make proper comparisons using your home’s data
- Healthier Home & Environment: This thermometer hygrometer with temperature and humidity monitor ensures proper indoor humidity that achieves important health benefits for skin and allergen; Can also serve as a refrigerator thermometer, freezer thermometer, reptile thermometer, soil thermometer, humidor hygrometer, cigar hygrometer, and more
- Air Comfort Indicator: This weather station humidity meter with humidity level icon indicates air conditions - DRY/COMFORT/WET, allowing this humidity sensor to ensure you’re always aware of changes to your home/household with just a quick glance
$15.99
4
10% Off

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Pgzsy
10% Off

12 Pack Pgzsy Mini Small Digital Electronic Temperature Humidity Meters Gauge Indoor Thermometer Hygrometer LCD Display Fahrenheit (℉) for Humidors, Greenhouse, Garden

Pgzsy

$13.04

$14.49
(10% Off)

More Details
Main highlights
- Temperature measuring range: -58℉-158℉ ; Humidity measuring range: 10%-99%RH (Measures conditions every 10 seconds)
- Temperature measurement accuracy: ±2℉; Humidity measurement accuracy: ±5%RH
- Mini Digital Humidity Thermometer allows you to easily know the environment temperature and humidity around you
- Fahrenheit (°F) display, this thermometer displays temperature in Fahrenheit
- 2in1 meter with built-in probe; digital electronic thermometer and hygrometer for measuring temperature and humidity for indoor use
$13.04
$14.49 (10% Off)
5
37% Off

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

EWPJDK
37% Off

Mini Hygrometer Indoor Humidity Meter Hygrometer Thermometers 6 Pack Humidity Meters Gauge Hygrometer Mini Digital Thermometer Hygrometer with Fahrenheit (℉) for Humidors, Greenhouse, Garden, Cellar

EWPJDK

$9.99

$15.99
(37% Off)

More Details
Main highlights
- WIDELY USED: The indoor thermometer hygrometer widely use in greenhouse, garden, guitar case, incubators, brooders, office, cellar, fridge, closet any other place that requires monitoring of temperature and humidity levels.
- WIDE TESTING RANGE: Humidity meters measuring range: -58℉-158℉ , humidity measuring range: 10%-99%RH.
- TWO IN ONE: The mini digital hygrometer thermometer with built-in probe, electronic thermometer and hygrometer for measuring temperature and humidity for indoor use.
- HIGH PRECISION DISPLAY: Humidity Meter measurement accuracy: ±2℉, humidity measurement accuracy: ±5%RH.
- EASY TO INSTALL: Our humidity meters gauge can help you to konw the current temperature and humidity, embedded opening size (1.81*1.06 inch) . If the size is not suitable, it can be fixed with double-sided tape.
$9.99
$15.99 (37% Off)

Best hydrometers - August 2025

ThermoPro TP49 3 Pieces Digital Hygrometer Indoor Thermometer Humidity Meter Mini Hygrometer with Temperature and Humidity Monitor Outdoor and Room Thermometer

SOLIGT Triple Scale Hydrometer and Glass Test Jar for Wine, Beer, Mead & Cider - ABV, Brix and Gravity Test Kit

ThermoPro TP50 Digital Hygrometer Indoor Thermometer Room Thermometer and Humidity Gauge with Temperature Humidity Monitor

12 Pack Pgzsy Mini Small Digital Electronic Temperature Humidity Meters Gauge Indoor Thermometer Hygrometer LCD Display Fahrenheit (℉) for Humidors, Greenhouse, Garden

Mini Hygrometer Indoor Humidity Meter Hygrometer Thermometers 6 Pack Humidity Meters Gauge Hygrometer Mini Digital Thermometer Hygrometer with Fahrenheit (℉) for Humidors, Greenhouse, Garden, Cellar

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