How To Calibrate Digital Hygrometer

A digital hygrometer is a device used to measure the relative humidity of the air which is essential to keeping cigars fresh.

In this blog post, we will show you how to calibrate digital hygrometer in just a few simple steps!

How To Calibrate Digital Hygrometer

Hygrometer displaying results
Calibrating your hygrometer is essential to keep it working properly. It should be done regularly to ensure an accurate reading.

Calibrating a digital hygrometer is a straightforward process that can be completed in just a few minutes.

We’re going to give you two different ways that you can calibrate your hygrometer:

Salt Method

What you’ll need:

  • Salt
  • Water
  • Ziploc bag
  • Hygrometer

Once you’ve gathered the supplies, then you can begin the process.

  • Start by adding a teaspoon of salt to a small cap or bowl
  • Add a few drops of water to the salt to make a paste
  • Place the cap with your hygrometer into a plastic Ziploc bag
  • Check it after 6-8 hours and read the hygrometer

Make note of the humidity reading as it should be at 75% so if it isn’t then this means your hygrometer needs calibration.

Setting it to 75% with the salt in the bag will help to calibrate it.

Hot Towel Method

What you’ll need:

  • Hot water
  • Towel
  • Plastic Ziploc bag
  • Hygrometer

Once you have all your supplies you can start the method:

  • Get the towel dampened and then place the hygrometer inside of it
  • Place this inside of a ziploc bag
  • Come back and check after a couple of hours

The reading should be at 100% so if it isn’t then set it to 100% as this will calibrate the hygrometer.

How To Choose The Right Digital Hygrometer

Hygrometer with a reading of 46%
Choosing a good hygrometer can mean that you get accurate readings most time.

A digital hygrometer is an essential tool for anyone who owns a cigar humidor.

Monitoring the humidity level inside the humidor helps to ensure that cigars are properly preserved and don’t dry out.

With so many different models on the market, however, choosing the right digital hygrometer can be a challenge.

Here are some tips to help you select the right model for your needs:

1. Accuracy Is Key

The most important consideration when choosing a digital hygrometer is accuracy. After all, what’s the point of owning a humidity monitor if it can’t give you accurate readings?

When shopping for a digital hygrometer, look for models that have been independently tested and verified for accuracy. This will help to ensure that you’re getting a reliable product.

Additionally, make sure to check the hygrometer’s margin of error.

This is the range of readings that the device is likely to give, and you’ll want a model with a small margin of error for the most accurate readings possible.

2. Ease Of Use

Another important consideration is the ease of use. You’ll want to choose a digital hygrometer that is easy to set up and use, as this will make the calibration process much simpler.

Look for a model with a clear, easy-to-read display. Additionally, it’s helpful if the hygrometer has only a few buttons or controls, as this will make it easier to operate.

3. Durability

Look for models that are made with corrosion-resistant materials, such as stainless steel or titanium.

These materials will stand up to the rigors of cigar smoke and last for many years.

4. Battery Life

Hygrometer next to a plant
Battery life is an important feature when it comes to having a hygrometer that is low maintenance.

Most digital hygrometers run on batteries, so it’s important to choose one with good battery life.

Depending on how often you use it, you may want to consider a model that uses AA or AAA batteries instead of a specialized battery type.

7. Multiple Sensors

Some digital hygrometers come with multiple sensors, which can be placed in different areas of the humidor.

This can give you a more accurate picture of the overall humidity levels inside the humidor.

8. Data Logging Feature

This can be useful if you want to track changes in humidity over time. Look for a model that stores data so you don’t have to manually keep track of the readings yourself.

9. Price

Like anything else, you’ll want to balance features against price when selecting a digital hygrometer for your humidor.

However, remember that cigars are a significant investment, so it’s worth spending extra for an instrument that will do its job well and last for many years to come.

Read More: How To Store Cigars Without A Humidor You can store your cigars without a humidor but you should definitely still have a hygrometer to read your humidity levels.


By following these simple steps, you can easily calibrate your digital hygrometer and ensure that it is providing accurate readings.

This is an important process to do on a regular basis, as it can help you keep your humidor in top condition! Thanks for reading!

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