Accuracy is the most important detail to look for when you’re searching for a new hygrometer and everything else is a far second-best. Whether you’re looking for a device to record the humidity levels in your humidor, in a large room, or in a small area, you’ll need one that you can trust.
While there are a lot of hygrometers on the market today, there really aren’t that many that can boast a high accuracy rate, which is what you really need the most.
Best Hygrometers of 2020
We took some time to do some testing of our own to find out which hygrometers performed well and which ones shouldn’t be considered. Use the list below to find the hygrometer that would best suit your needs knowing that they are all reliable with high accuracy ratings.
You’ll also find different price ranges so that you can choose the hygrometer/thermometer that fits best into your budget.
1. Extech 445715 Big Digit Hygro-Thermometer
When you want your readings to appear as plain as day choose the Extech hygro-thermometer featuring big easy-to-read digits. This device is extremely accurate and can be used to maintain the proper humidity and temperature conditions in large areas such as warehouses, storage facilities, factories, office buildings etc.
The digits on this unit are 1″ high and both humidity and temperature levels are displayed simultaneously. You’ll be able to know at a glance what the levels are and won’t have to fiddle with the hygro-thermometer to see the readings.
We were amazed to see just how accurate this device was when compared to many others in its price range. It is accurate to 6% RH and 1.8°F. The readout can be switched from Celsius to Fahrenheit and calibration can be done using the optional salt bottles. The temperature range on this model runs from 14°C up to 140°F (or -10°C up to 60°C) while the humidity levels range from 10% RH up to 99% RH.
This unit comes with a tilt stand, an 18-inch sensor probe cable, a AAA battery, a user guide, and a wall mount bracket. This unit was by far one of the easiest hygro-thermometers to operate and we were very pleased with its ability to maintain consistently accurate readings.
2. Caliber IV Digital Hygrometer
This hygrometer is made by Western Humidor, so you know that you can trust both its accuracy and design. Western Humidor has an unrivaled reputation for making some of the most accurate devices in the industry and this company is the original designer of digital hygrometers for humidors.
If you loved the Caliber III model, you’ll definitely appreciate the updated Caliber IV unit offering a simple to use re-calibration option. When you receive it, however, you can rest assured that it has already been pre-calibrated and is ready to use. At the same time, however, you can feel free to test it upon arrival with a salt test and you’ll be extremely pleased to see just how accurate this unit is.
The hygrometer uses an advanced sensor to measure humidity levels and maintains an accuracy of +/- 1%. It comes with a magnetic mount and its slim design will fit perfectly into any cigar humidor. We were especially drawn to this unit due to its design features and its trusted reliability in the field.
When you want to make sure that your cigar investments are well-preserved, you know that Western Humidor is a name you can trust. For many, it’s Western Humidor or nothing when choosing their next hygrometers.
3. Indoor Hygrometer with Thermometer
The Thermor Bios indoor thermometer and hygrometer displays both temperature and humidity levels and it’s perfect for use in wine cellars, basements, a baby’s room, and anywhere else where it’s important to maintain a consistent humidity level.
This unit has a range of -58°F up to 158°F for indoor temperatures and can be easily switched to show temperatures in Celsius. The button to make the switch is located on the far right-hand side at the back of the device.
This thermometer offers a wider range of temperature readings than most other hygrometer/thermometers on the market. When you need a unit that can handle extreme temperature readings and offer them with accuracy, this would be one of your best choices. One user has even mentioned using it in her freezer to monitor the humidity levels in it.
You’ll also appreciate the big numbers that can be easily read and the ease of changing the AAA battery. You should be aware, however, that this model cannot be wall-mounted and needs to rest on its stand.
If you need a hygrometer that will be attached to the wall, you should look at the other units that we have reviewed on this page.
4. Caliber 4R Digital/Analog Gold Hygrometer
This is another great hygrometer by the well-respected Western Humidor company. This style offers the accuracy of the digital Caliber IV device in a classic and stunning analog design. It features a gold trim, which adds extra class and distinction to any humidor.
This is, in fact, one of the best-looking hygrometers that we’ve seen yet. When both accuracy and elegant features are important to you, this unit is a perfect choice.
The readings can be made in both Celsius or Fahrenheit and the unit features color coding for easy reading, the ability to recalibrate it by the user, a secure magnetic mount and it comes with its own battery. The accuracy maintained by the humidity sensor is +/- 1% and at this low price point, it’s one of the most accurate models that we’ve had the opportunity to review.
Add some flair to your humidor with this elegant and stately hygrometer with gold trim and classic analog design. With its elegance and class distinction, no one will ever know that you paid this low price for such a dignified model. When you want it all, this unit combines accuracy with anesthetics so that you can enjoy the best of both worlds.
5. Portable, Handheld Thermometer/Hygrometer
This handheld hygrometer/thermometer by GoerTek is a straightforward and easy to use handheld hygrometer and thermometer that uses a 9 V battery. The temperature range on this unit is from -10 Celsius up to +50°C and can easily be switched over to Fahrenheit readings. The humidity range is from 10% up to 99% and you can easily switch from a temperature to a humidity display with one touch of a button.
This is a perfect unit for anyone that wants a 2-in-1hygrometer/thermometer that can be used anywhere at any time. If you’re not looking for a device that is wall-mounted and used only for one room or purpose, this is a great handheld device.
Take it with you when you’re on the go and need to measure temperatures and humidity readings in different areas.
This device also features an LCD backlight, which is comparable to the type of LCD light you would see in an alarm clock. If you think that you’ll be looking at it in darker areas, this lighted unit will certainly come in handy. The LCD light automatically turns on when the lighting is dim due to its built-in light sensor.
6. Indoor Humidity and Temperature Monitor with Backlight and Probe
Ambient Weather has constructed an extremely accurate humidity and temperature monitor that’s both functional and stylish. Use it in your home or at your office or business to measure temperatures both inside and out. This model features a 5’ probe that’s completely waterproof, which is a unique feature that you don’t see on many hygrometers/thermometers.
This means it can be used to measure air temperatures, water temperatures, freezer or refrigerator temperatures as well as their humidity levels. The humidity icon on this model will identify both low and high humidity conditions.
This hygrometer comes with a large digital display and a backlight so that you can read the measurements from a distance. The backlight is activated when the lighting is dim and you can also activate this backlight with the push of a button.
With a compact design and measuring only 3″ x 4″ x 1″, it’s easy to use anywhere. Feel free to place it on a table or a desk or mount it to your wall with its suspension eye. This model can be used just about anywhere and many purchasers buy it for its amazing waterproof feature.
7. AcuRite Indoor Humidity Monitor
This handy indoor humidity monitor by AcuRite measures indoor temperatures in both Celsius and Fahrenheit and features an icon that indicates ideal, low, or high humidity conditions. The unit is powered by a single AA battery and can sit on a tabletop or be mounted to a wall or another fixture with its built-in magnet and clip.
Toggle easily between Celsius and Fahrenheit with the convenient button on the back of the unit and monitor the humidity and temperature of your home by accessing the lows and highs that have been recorded during the last 24 to 36 hours.
Keep in mind that this monitor does not give exact percentage readings of humidity levels. When you need precise measurements you’d be better off with one of the other units listed. When you want an easy-to-read monitoring device, however, that you can count on 100% that will let you know whether the relative humidity in a room or area should be adjusted or not, you can count on the accuracy that can be found in this AcuRite hygrometer.
The humidity readings are shown as “wet”, “dry” or comfortable on a large screen. The accuracy rating ranges from 2% to 3% RH and the unit can measure temperatures ranging from -58°F up to 158°F. It comes with a magnetic backing and a table stand so that it can be placed in various areas around your home.
When you need reliable temperature and humidity recordings, this is an affordable device that provides good value for the money.
8. ThermoPro Hygrometer Thermometer
Keep the living conditions in your home at an optimal level with the ThermoPro hygrometer with a convenient temperature gauge. Not only does this unit provide reliable readings but it also gives you a daily update on the high and low temperature and humidity readings.
You’ll be able to compare the readings from today from those taken on another day to see how any adjustments you have made to regulate your home’s comfort level have been working. To clear the settings, simply press and then hold the clear button for a couple of seconds.
The humidity readings are shown as “wet”, “dry” or “comfortable” on a large screen. The accuracy rating ranges from 2% to 3% RH and the unit can measure temperatures ranging from -58°F up to 158°F. It comes with a magnetic backing and a table stand so that it can be placed in various areas around your home.
When you need reliable temperature and humidity recordings in your home, this is an affordable device that provides good value for the money.
9. AcuRite Home Comfort Monitor Black
It’s difficult to maintain the perfect comfort level when the temperature and the humidity in a home are consistently rising and falling. When you need the proper information to work with to keep your home at a comfortable level, reach for the AcuRite black home comfort monitor. It’s one of the most affordable options on the market today and best of all, it boasts amazing accuracy.
The thermometer has a built-in humidity level icon so that you can easily see what the indoor air conditions are at a moment’s notice. The icon shows an ideal, low, or high indoor humidity level while the display also shows the daily low and high memory.
There is an integrated magnet on the back of the device so that the hygrometer can be set up quickly and attached to any type of magnetic surface. Temperature recordings can be made in either Fahrenheit or Celsius and the monitor has a temperature range of 32°F up to 122°F or 0°C up to 50°C.
There is a 20% to 90% RH humidity range. All of these features are all most people would ever want or need in a thermometer/hygrometer and at this price level, you won’t find many units better than this one.
10. Western Humidor Analog Hygrometer
When you’re looking for the most accurate hygrometer on the market in a low price range, you won’t go wrong with this Western Humidor analog hygrometer. It’s a small but mighty device with a depth of 0.6 inches and a diameter of only 2.25 inches.
Use it in your humidor to maintain the freshness of your cigars or put it in your guitar or violin case to record the humidity levels.
This monitor can also be used to keep track of the temperature and humidity in a room, a closet, or anywhere else where the conditions need to be controlled. Although it’s quite small, you can rest assured that this is a quality product since it’s made by Western Humidor.
One of the nice features on this device is its ability to be calibrated. While this hygrometer is very accurate right out of the box, it can easily be calibrated using the small hole located on the back. This is a feature that is hard to find on other hygrometers in this price range so if accuracy is your top priority, this is the best one to buy if you’re on a budget.
While most homes have a reliable thermometer hanging on the wall, many are lacking a hygrometer that can help save the integrity of a structure. The proper humidity levels will stop mold from developing in conditions that have too much moisture in the air and will stop walls and floors from cracking from a lack of humidity.
At the same time, every humidor needs its own hygrometer in order to preserve the integrity of the cigars to ensure that every cigar tastes its best once it’s lit up.