The Best Hygrometers
Dense humidity can be one of the most frustrating things about the muggy months. When the air gets thick, merely walking around your house can make you work up a sweat. And if you keep plants in your greenhouse or home, keeping your humidity level in check is essential to your plants' health. That’s why getting a quality hygrometer is so important.
What to Look For
The best hygrometers must have a combination of three things: accurate level readings, a user-friendly display, and helpful supplemental features. One of our favorite picks was the Govee hygrometer. It syncs with your smartphone, allowing you to keep track of your humidity measurements via Bluetooth. You can even set up notifications on your phone to know when levels rise or drop. If you want a no-frills model, the ThermoPro TP49 digital hygrometer sports a large, easy-to-read display with spot-on accuracy, making it the perfect pick for greenhouses. We thought the digital smiley face was a fun way to notify us whether the humidity was at an ideal level for our plants. There are many different kinds to choose from, so we have assembled a list of the most efficient hygrometers on the market to help you narrow your search.
ThermoPro TP49 Digital Hygrometer
Impressive accuracy
ThermoPro puts a happy face on humidity readings with this impressive hygrometer. ThermoPro lets you know when humidity is getting too high or low via their fun and intuitive smiley-based system that ensures your comfort and plant health at all times. This pick is perfect for greenhouses because of its bullseye accuracy in temperature and humidity readings. ThermoPro also gives you several options for mounting: a tabletop stand for setting on counters and tables, a magnetic back for fridge placement, and a hanging hole for wall insertion. For anyone looking for accurate humidity readings, ThermoPro’s got you covered.
Pros:
- The bright, easy-to-read display is perfect for greenhouses and humidors.
- If you’re using this for a greenhouse or humidor, you’ll love that the levels refresh every ten seconds for the most up-to-date readings.
Cons:
- Readings may differ slightly between the hygrometers if you purchase the two-pack.
AcuRite 00613 Digital Hygrometer
Stay informed
Another fantastic overall option, this pick from AcuRite does humidity measurements justice. With a magnet on the back for placement in all sorts of different environments, it’s a versatile little unit that does a big job for such a small size. Even the price is small, yet it’s built to last season after season. And besides just humidity readings, this device measures the temperature, the daily humidity range, and the daily temperature range.
Pros:
- If you have butterfingers like us, you’ll be happy to know it can handle a few drops.
- The clip stand and built-in magnet allowed us to position the hygrometer exactly where we wanted it.
Cons:
- It doesn’t display precision past the one’s place (no tenths of a degree or percentage).
Govee Hygrometer
High-tech humidity readings
Govee’s hygrometer brings humidity level reading into the 21st century with this high-tech hygrometer and app. Just mount your hygrometer, connect to the app via BlueTooth, and measure your humidity levels from anywhere in the house. Not only is the Govee convenient, but it’s also stunningly accurate. The Govee boasts accurate temperature readings within 0.54°F and humidity readings within 3%. Once you’re connected to the BlueTooth app, you can set up a notification system that will alert you whenever your humidity or temperature readings drop or rise to a certain level. Govee includes two hygrometers for a reasonable price and free access to the app. If you’re in the market for a hygrometer with a forward-thinking interface, go with Govee.
Pros:
- The Govee updates its reading every two seconds, giving you the most accurate and up-to-date information.
- The easy-to-use mobile app made this one of our favorite hygrometers. We liked that we didn’t have to constantly check the hygrometer because all the data we needed was on our phones.
- Considering it comes with two hygrometers, we found the Govee to be an outstanding value.
Cons:
- The Bluetooth connection via the mobile app may be finicky at times, depending on how far you are from the hygrometer.
ThermoPro TP55 Digital Hygrometer
Detailed display
ThermoPro takes another spot on our list with this impressive and intuitive hygrometer. This hygrometer breaks down your humidity and temperature readings in detail, allowing you to view maximum and minimum levels and trends throughout the day. For people who love getting into the weeds on minute details, this pick is a must-have. ThermoPro provides you with up-to-date levels by refreshing readings every ten seconds. Plus, the large LCD screen features a powerful backlight that allows for reading in low-light situations and a touchscreen for convenient browsing.
Pros:
- Out of all our top hygrometer picks, the ThermoPro had the most detailed and accurate readings of the bunch.
- The LCD screen sports a powerful backlight and a responsive, smartphone-worthy touchscreen.
Cons:
- The temperature readings could be more consistent.
VIVOSUN Digital Hygrometer
As strong as they come
For a hygrometer that can handle the outdoors, consider this option from VIVOSUN. It comes with an outdoor sensor that communicates the temperature and humidity levels remotely to the indoor unit. The range of the wireless unit is as far as 197 feet away, so you don’t need to worry about wires. That way, you can get an idea of what the weather is like outside while enjoying the stability of the indoor air. Better yet, the temperature resolution is a tenth of a degree, and the humidity resolution is 1%.
Pros:
- There’s nothing more frustrating than realizing you’re going to need batteries for a new device. We were relieved to see that the VIVOSUN comes with 4 AA batteries.
- The VIVOSUN expands to a total of three remote sensors so that you can receive readings from multiple rooms.
Cons:
- If kept on, the backlight drains the batteries really quickly.
Frequently Asked Questions
Can a hygrometer change levels of humidity?
No, a hygrometer cannot change levels of humidity in your home or greenhouse. A hygrometer is only able to check the levels. It’s best to pair your hygrometer with a quality dehumidifier that will be able to keep the humidity in your home or greenhouse at your desired level.
What are some other benefits of having a hygrometer?
A hygrometer can come in handy for many situations. If you care for exotic pets, particularly those native to rainforest climates, a hygrometer can assure that the humidity in your home is suitable for their needs. Also, hygrometers are quite good at predicting when rain is coming. If your hygrometer is reading high humidity levels for a couple of days in a row, you can be sure to expect rain on the way soon.
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