What Are The Best Analog Hygrometers?


analog hygrometer accuracy
It’s difficult to match the elegance or style of analog hygrometers

Sometimes the simplest things in life are the most useful and an analog hygrometer is a perfect example. A hygrometer is a sensitive measuring instrument. It is used to measure the relative humidity – the amount of moisture – in the air. People’s opinions vary on what the best analog hygrometer is, but at its essence, it needs to be accurate, reliable, and functional.

They are useful in many different applications. It can be as simple as being used to measure the humidity in our home or on our back porch. If we are growing or caring for plants then a hygrometer is an essential device. Even if we just want to preserve and protect the books in our library then a hygrometer is a valuable and useful device. But with so many devices on the market, what makes the best analog hygrometer?

In this article, we will look at many different aspects of hygrometers. We will look at why you might need one, how they work, and the different types, and share some of our picks to help you choose the best analog hygrometer for your needs.

ProductTypeProduct WeightProduct Dimensions (inches)WarrantyStarsPrice and More Info
Zoo Med Economy

Zoo Med Economy Analog Dual Thermometer and Humidity Gauge
Analog6.4 ounces6 x 1 x 4n/a

4.4 out of 5 stars

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Caliber 4R Gold

Caliber 4R Gold Digital Analog Hygrometer
Digital / Analog1.6 ounces2.7 x 2.6 x 1Please contact the seller directly.

4.2 out of 5 stars

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Bjerg Instruments Antique Brass 8”

Bjerg Instruments Antique Brass 8” Indoor Outdoor Thermometer Hygrometer
Analog0.9 pounds3.1 x 9.3 x 9.7Please contact the seller directly.

4.2 out of 5 stars

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General Tools A600FC

General Tools A600FC High Temperature Analog Thermo-Hygrometer
Analog7.2 ounces5.8 x 5.8 x 5.8Please contact the seller directly.

4.4 out of 5 stars

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La Crosse Technology 18”

La Crosse Technology 18” Atomic Outdoor Clock Temperature Humidity
Analog5.5 pounds2.2 x 18 x 181 year

4.1 out of 5 stars

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Lily's Home Analog Weather Station With Clock, Hygrometer, Barometer

Lily's Home Analog Weather Station
Analog2.15 pounds14 x 8 x 4n/a

4.3 out of 5 stars

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Lily’s Home Analog

Lily’s Home Analog Weather Station with Galileo Thermometer, Hygrometer, Barometer
Analog1.9 pounds13.5 x 9 x 6.4Please contact the seller directly.

4.7 out of 5 stars

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What Is A Hygrometer?

A hygrometer is a sensitive measuring instrument. It measures one thing and one thing only. It is used to measure the relative humidity – the amount of moisture – in the air.

Hygrometers come in different styles and designs. There are digital and analog hygrometer options. For many, the best analog hygrometer comes with temperature and barometer gauges built-in, making them mini weather stations.

best analog hygrometer
The best analog hygrometers are great tools to have to ensure a comfortable environment for all.

How Does A Hygrometer Work?

There are several basic measuring styles of hygrometers. They are surprisingly simple in concept. We will outline some of the more common styles below:

1. Wet Bulb/ Dry Bulb

This type of hygrometer contains two different thermometers. One has a wet bulb and the other has a dry bulb.

As water evaporates from the wet-bulb thermometer the temperature decreases (this is similar to when your skin is wet and you blow air onto it – it feels cooler). When the difference in temperature between the wet and dry bulb thermometers is compared, the relative humidity can be determined.

2. Human Hair

A human hair will expand or contract depending on the humidity of the air. A needle gauge is used in this style of hygrometer.

The gauge measures how much the human hair has expanded or contracted. That data is used to calculate the relative humidity in a specific area.

3. Electrical

Resistance and capacitance are used to measure humidity. The capacitive style of the hygrometer uses two metal plates with air between them.

The moisture in the air affects the amount of static electrical charge which can be stored in the plates. This value can then be used to indicate the relative humidity.

4. Dew Point

The saturation of moist air in a gas is how this hygrometer works. These tend to be the most accurate of all hygrometers in the marketplace.

What Are The Different Types of Hygrometers?

analog humidity meter
A digital or analog humidity meter will assist you in keeping a safe level of humidity in your surroundings.

There are two basic types of hygrometers. They fall under the categories of analog or digital.

1. Analog

The way in which analog hygrometer works is based on a coil of thin metal that is bonded to a hygroscopic material that can absorb moisture.

As the strip collects moisture it expands causing the coil to bend or rotate. The coil is attached to a needle that moves accordingly and provides a reading on a dial face.

When the moisture on the absorbent material begins to evaporate, the coil contracts. This moves the attached needle to different reading points on the dial.

2. Digital

The majority of digital hygrometers use a resistive or capacitive sensor. Electricity flows through a small piece of moisture-absorbent material that is exposed to the air.

When the amount of moisture absorbed changes, the electrical properties do as well. This is the data used to calculate the relative humidity.

Once the calculation is complete, a measurement is sent to the digital display which provides a numerical value. This is the humidity reading for the area.

For more information on digital hygrometers, make sure you check out this article.

Our Picks Of The Best Analog Humidity Meter Options

If you’re not a fan of digital devices, there are still some great hygrometers out there for you! There are many factors in determining the quality of a hygrometer, including the materials it is made of, the design and durability, whether it is battery-powered or not, the extra features and functionality it comes with, and most importantly, accuracy.

The analog hygrometers listed below are some of our favorites. Check them out below:

Zoo Med Economy Analog Dual Thermometer and Humidity Gauge

Zoo Med Economy Analog Dual Thermometer and Humidity Gauge

Featuring easy-to-read analog temperature meter dials, this product allows you to monitor both the temperature and humidity with one unit. The dials contain color-coded zones to help you determine when heat and moisture levels are in need of correction.

This analog thermometer hygrometer unit is primarily designed for terrariums or other small enclosures but can be used for other applications as well.

The entire piece has a Velcro back to allow for easy mounting and removal for cleaning purposes or for placing in a different location.


Inexpensive tool for measuring both temperature and air moisture content
Works well
Easy to read and color codes help identify safety zones
Uncomplicated design with dials for each reading – temperature, and humidity


Velcro backing is not very effective in some applications
Cheap-looking design
Readings are not very accurate when compared to more precise instruments
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Caliber 4R Gold Digital/Analog Hygrometer

Caliber 4R Gold Digital

This is an accurate digital/analog monitor with an advanced humidity sensor that is precise to 1% plus or minus. The unit can be recalibrated by the user and the design features a magnetic mount.

The dial is color-coded for easy reference and there is a battery included. Following manual analog hygrometer calibration, this unit is set to go.


Attractive-looking measuring device
Once calibrated the accuracy is extremely good
Color codes include a Green Zone for those who use humidors to store cigars


Needs to be calibrated once the package arrives
Readings are slower than other similar designs
The display can only be read from viewing directly from the front
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Bjerg Instruments Antique Brass 8” Indoor Outdoor Thermometer Hygrometer

Indoor Outdoor Thermometer Hygrometer

The large 8-inch diameter of this indoor/outdoor thermometer and humidity gauge is perfect for many different applications. The 5.5-inch diameter dial face is easy to read and displays Celsius and Fahrenheit temperatures.

The analog humidity gauge is at the bottom of the unit. Featuring steel construction, this stylish instrument comes with an antique brass finish and has a glass lens.


Very attractive, solid design
High level of accuracy with the readings
Works extremely well inside or outside of the home


A bit heavier than many units so hanging it up requires some thought for placement
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General Tools A600FC High-Temperature Analog Thermo-Hygrometer

High-Temperature Analog Thermo-Hygrometer

Need to keep an eye on how your humidifier or dehumidifier is doing? Then this could be your choice. The attractive analog hygrometer thermometer design features a stainless steel case and flange mount make this an attractive-looking unit… but there is more to it than meets the eye.

The temperature range that can be monitored goes from 30 to 250 degrees F (-1 to 121 degrees C) and the accuracy is noted at +/- 1.8° F (+/- 1° C).

The relative humidity range is from 10 to 95% and is accurate to +/- 6% of the reading. The temperature resolution is 2 degrees F (1 degree C) and RH resolution is 2% making this one of the best analog hygrometers for ease of use and accuracy.


Well-made, sturdy, solid construction with a high-quality appearance
Extremely accurate


Cannot be used outdoors
Reported as having mounting holes but did not come with screws included
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La Crosse Technology 18” Atomic Outdoor Clock, Temperature, Humidity Meter

La Crosse Technology 18” Atomic Outdoor Clock Temperature Humidity

This is truly a multi-purpose instrument. The time feature is radio-controlled and includes the analog hygrometer and thermometer readouts. It is also designed for use either indoors or outdoors.

You can even select from four different US time zones for accuracy. This time, temperature, and analog humidity meter are powered by a single AA battery (not included).


Will automatically adjust time according to the nearest atomic-powered time station
Attractive design that fits in wherever it is placed
Solid construction
The analog hygrometer accuracy provides reliable readings


Time will automatically set as soon as a battery is installed, this may be unnerving for some
The default time is Pacific but can be changed to the correct time zone with optional buttons
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Lily’s Home Analog Weather Station with Clock, Hygrometer, Barometer

Lily's Home Analog Weather Station

Designed as a traditional weather station, this work of art, as the manufacturer refers to it, can fit comfortably in a library, study, office, or restaurant setting.

The weather station features a rich wood frame and measures more than just temperature. Other readings come from barometric pressure and humidity. It also contains an analog clock.

The storm glass barometer looks like a science project and it does provide much in the way of a conversation starter. This analog hygrometer thermometer is unique for that reason.


Classic look with the wood and glass elements
A real conversation starter depending on where you use it
Features a combination of temperature humidity and barometer gauges


Not as accurate as expected
It is fragile
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Lily’s Home Analog Weather Station with Galileo Thermometer, Hygrometer, Barometer

Lily’s Home Analog Weather Station

This unit has an 11-inch Galileo thermometer on an oak base. There’s also a glass etched barometer and wood-framed hygrometer and blue-colored powder all included.

There are a total of 5 different color-coded floats in the 11.4-inch tall Galileo thermometer. Each has a gold-plated tag noting temperatures between 64 and 80 degrees F.

The glass barometer has an etched globe with blue powder, a plastic syringe, and a tube to allow you to insert colored water into the globe. The oak-framed analog hygrometer measures 2.5 inches in diameter. All instructions are included.


Attractive design made with quality products
Functional readings from all instruments make this a useful tool
Great design for an analog thermometer hygrometer
Educational in teaching Galileo’s original thermometer concept


Instructions are included but are a little vague in places
Some users report damage resulting from shipping
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What Are The Benefits of A Hygrometer?

There is no doubt that a device that measures humidity can come in handy in our daily lives. But what are the real benefits of such a tool?

Hygrometers allow us to monitor and then adjust the conditions of our living space for more comfort. When this occurs we improve the conditions that affect our health.

You could say that the best analog hygrometers are great tools to have to ensure a comfortable environment for ourselves. But it is not just our personal health and well-being that is improved with proper humidity levels.

They are also handy tools for monitoring humidity levels for specific applications, such as in terrariums, humidors, and other locations where specific humidity levels are critical.

Humidity also has an impact on our pets and also can cause damage to homes and property if not properly controlled.

A hygrometer used in conjunction with a humidifier, dehumidifier, or other humidity control systems can be a great investment to protect your health and valuables.

Why Do You Need A Hygrometer?

Hygrometers allow you to accurately monitor the moisture content in the air you breathe. In a home, when humidity is high, condensation can appear on walls, ceilings, windows, and furniture, which can lead to the formation of mold and mildew.

With high humidity levels indoors there can be different kinds of damage. Mold and mildew can affect allergies and promote corrosion or warping in wood construction and furniture.

For more information on how to get rid of condensation, have a look at this article.

The opposite end of the scale is also damaging. With low humidity, the air is dry and can affect breathing conditions in many people. There are other concerns as well.

Drier air can result in skin irritations, rashes, cracked skin, and itchiness. Dry air can also cause problems with furniture causing it to crack and break.

For information on the best humidifiers that you can use to alleviate low humidity conditions, see this article.

A digital or analog humidity meter will assist you in keeping a safe level of humidity in your immediate surroundings. A hygrometer can be used with a dehumidifier or humidifier to control relative humidity.

Other Analog Hygrometer FAQs

How do you install an analog hygrometer?

To install an analog hygrometer, you first need to decide where you want to place it. It’s important to place the hygrometer away from direct sunlight, drafts, and other sources of temperature and humidity fluctuations, as this can affect the accuracy of the readings.

Once you have chosen a suitable location, you can mount the hygrometer using its built-in hanger or a separate hook or bracket. Some models also have a stand or base that allows them to sit on a tabletop or shelf.

Before taking any readings after mounting the hygrometer, you should give it at least 24 hours to adjust to the surroundings. The hygrometer will then become more accurate as it becomes acclimated to the temperature and humidity of its surroundings.

Are analog hygrometers accurate?

Digital hygrometers are generally considered to be more accurate than analog hygrometers. While analog hygrometers can be accurate, their readings can be influenced by variables like temperature and humidity variations, and they sometimes need more frequent calibration to keep their accuracy. As opposed to analog hygrometers, digital hygrometers employ cutting-edge technology to deliver accurate and consistent readings that are less prone to variation or inconsistent results. A digital hygrometer is frequently the best option if accuracy and dependability are your top priorities. However, some people still favor the conventional appearance and feel of analog hygrometers and are prepared to put up with the potential for some inaccuracy in exchange for pleasing aesthetics.

How do I calibrate an analog hygrometer?

Calibrating an analog hygrometer involves adjusting the instrument to ensure that it is reading the correct level of humidity. Here are the general steps to calibrate an analog hygrometer:

1.       Obtain a calibrated reference, such as a salt test or a commercial calibration kit.
2.       Place the hygrometer and the reference in a sealed container for a few hours to allow them to equilibrate.
3.       Check the reading on the hygrometer and compare it to the reference reading.
4.       If the reading on the hygrometer is off, adjust the calibration screw or knob on the hygrometer to match the reference reading.
5.       Repeat the process until the hygrometer consistently reads the correct level of humidity.

It’s important to follow the specific instructions provided with your hygrometer or calibration kit, as the process can vary depending on the type of instrument and reference used. Additionally, it’s recommended to calibrate your analog hygrometer at least once a year, or more frequently if you notice that its readings are consistently inaccurate.

What should I look for when buying an analog hygrometer?

There are a few important things to think about when purchasing an analog hygrometer to make sure you select a dependable and accurate instrument. What to look for includes the following:

–          Quality and durability: Choose an analog hygrometer that is well-made and long-lasting, with premium materials that can withstand repeated use and last for years.
–          Accuracy: Choose an analog hygrometer that has a history of being accurate. While no instrument can ever provide 100% accurate readings, it’s crucial to pick one that will do so consistently.
–          Range: Consider the range of relative humidity values that the hygrometer is capable of measuring. Pick one that is appropriate for the particular use you have in mind, such as a cigar humidor or a gun safe.
–          Calibration: To ensure accurate readings, look for an analog hygrometer that is simple to calibrate and has clear instructions for doing so.
–          Size and style: Pick an analog hygrometer that fits the room or humidor it will be used in and blends in with the decor.
–          Price: The cost of analog hygrometers can vary, but you shouldn’t automatically assume that the most expensive model is the best. Find one that satisfies your requirements for accuracy and quality while staying within your budget.

Can an analog hygrometer be used for both indoor and outdoor humidity measurement?

Analog hygrometers can be used both inside and outside to measure humidity, but changes in temperature and humidity levels can have an impact on how accurate analog hygrometers are. An analog hygrometer can be a dependable and affordable option for measuring humidity in a space or a particular area, like a humidor or a gun safe, when used indoors. However, for outdoor use, digital hygrometers are generally considered to be more accurate and reliable, as they can provide more precise and consistent readings in a wider range of environmental conditions. In order to ensure accurate readings when using an analog hygrometer outdoors, it’s crucial to keep it protected from the elements and calibrate it frequently.

How often should I check and recalibrate my analog hygrometer?

Your need for precision and the circumstances in which you use the analog hygrometer will both have an impact on how frequently you should calibrate and verify your hygrometer. In general, you should calibrate your analog hygrometer as needed to ensure that it is giving correct readings and check its accuracy at least once every 6 to 12 months.

If the device is used in extreme or rapidly changing environments, such as in a humidor or a greenhouse, it may need to be calibrated more frequently. On the other hand, if the device is used in a stable indoor environment and only serves as a general indicator of humidity levels, it may only need to be calibrated occasionally.

If you observe that the readings are regularly incorrect or that the hygrometer is not responding to changes in humidity levels, it could be time to calibrate or replace the hygrometer. It’s also a good idea to keep your analog hygrometer clean and free of debris because this can over time impact its accuracy.

How do I clean and maintain my analog hygrometer?

Proper maintenance and cleaning of your analog hygrometer can help to ensure accurate readings and extend its life. Here are some tips for cleaning and maintaining your analog hygrometer:

–          Keep it dry: Make sure to keep your analog hygrometer dry at all times. Excess moisture can damage the instrument and affect its accuracy.
–          Use a soft cloth: When cleaning your analog hygrometer, use a soft, lint-free cloth to gently wipe down the surface of the device. Avoid using water or cleaning solutions, as this can cause damage.
–          Remove dust and debris: Use a soft-bristled brush or compressed air to remove any dust or debris that may have accumulated on the surface of the hygrometer.
–          Check for damage: Regularly inspect your analog hygrometer for any signs of damage, such as cracks or scratches. If you notice any damage, it may be time to replace the hygrometer.
–          Recalibrate as needed: Over time, the accuracy of your analog hygrometer may decrease. If you notice that the readings are not as consistent or reliable as you expect, it may be time to recalibrate the instrument. Refer to the manufacturer’s instructions for specific calibration procedures.

Are analog hygrometers more durable than digital ones?

Due to the fact that analog hygrometers contain fewer electrical components that might go wrong or fail than digital hygrometers, they are typically regarded as being more durable. However, they can still be susceptible to wear and tear, and proper maintenance and care are necessary to ensure their longevity and accuracy.

What are the benefits of using an analog hygrometer over a digital one?

An analog hygrometer has a few advantages over a digital hygrometer. Analog hygrometers are often less expensive than their digital counterparts is one of the main benefits. Additionally, because they don’t need batteries or a power source, they can be used in places without electricity. Additionally, some people prefer the analog hygrometer’s appearance and feel, finding it to be more attractive than digital models.

What is an analog hygrometer and how does it work?

An analog hygrometer is a device used to measure the relative humidity of the air. It works by using a material that changes size in response to changes in humidity. This movement is translated into a reading on a dial or scale, typically through the use of mechanical linkages. An analog hygrometer is an older technology compared to digital hygrometers but is still commonly used due to its ease of use and low cost.

Can an analog hygrometer measure temperature as well as humidity?

Yes, some analog hygrometers do have the capability to measure temperature as well as humidity. These hygrometers typically have two separate scales or dials, one for measuring humidity and one for measuring temperature. However, it’s worth noting that the temperature measurement on an analog hygrometer may not be as accurate as a dedicated thermometer, as the measurement is often a secondary function of the device.

Is an analog hygrometer easy to calibrate?

Although calibrating an analog hygrometer can be simple, it may take some time and effort. In most cases, the procedure involves placing the device in a known relative humidity environment, like a salt solution or a humidity chamber, and adjusting the dial or scale until the reading corresponds to the known humidity level.

However, an analog hygrometer’s ease of calibration can vary greatly depending on the device’s design. Some analog hygrometers may have a mechanism that can be adjusted to make calibration simpler, whereas other models may need to be disassembled in order to make changes. Following the manufacturer’s instructions when calibrating an analog hygrometer is generally a good idea.

What is the lifespan of an analog hygrometer?

The lifespan of an analog hygrometer can vary widely depending on several factors, including the quality of the device and the conditions in which it is used.

In general, a high-quality analog hygrometer can last several years with proper care and maintenance. However, factors such as exposure to extreme temperatures, moisture, or direct sunlight can shorten the lifespan of the device. Similarly, rough handling or accidental damage can also impact the lifespan of an analog hygrometer.

However, the lifespan of an analog hygrometer can also be affected by the materials used in its construction, with some materials being more durable and longer-lasting than others. Taking good care of the device, such as storing it in a safe place when not in use, can help extend its lifespan and ensure that it provides accurate readings over time.

Can an analog hygrometer be used for measuring humidity in a humidor?

Yes, a humidor’s humidity can be measured using an analog hygrometer. Cigars and other items that need a particular relative humidity level are kept in humidors, which are closed containers. It’s crucial to measure the humidity levels inside a humidor to make sure the items are kept there in the best possible conditions.

Due to their simplicity, readability, and ability to provide an accurate indication of relative humidity levels, analog hygrometers are a common choice for measuring humidity in humidors. Certain analog hygrometers are created especially for use in humidors and may have characteristics that make them more suitable for this use, such as small size, strong construction, or a humidity-resistant design.


You should already know what relative humidity is and why it is important. The first step to monitoring and measuring RH is to get a good hygrometer. It doesn’t have to be the most expensive or one of the cheapest. Just make sure the one you get is accurate and reliable.

As mentioned above, there are many options, including analog and digital, indoor and outdoor. As a pick of one of the best analog hygrometer options, we recommend the La Crosse Technology 18” unit, but all the other models mentioned above are very good.

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