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EMF Testing – The Whats, Whys, and the Hows

Reading the word EMF must have rung a bell. Something that you studied in your high school. But that was long ago; why are you reading about those now? And that too about testing EMFs? Let us answer all of this for you.

Electromagnetic fields (EMFs) surround us from everywhere. They could be as close as our smartphones or as far as the power grids. But the point is, they’re there in different forms. So, understanding EMFs, their risks, and more and more EMF testing becomes crucial for us. After all, we should know more about our surroundings.

EMF testing is all about detecting and measuring electromagnetic fields. It helps in assessing their impact on our health and the environment. It’s fair to say that EMFs are a concern. This is why there are certain exposure limits set by the U.S. government, more particularly, EPA. This is enough of an emphasis on testing for EMFs. But of course, you might still be curious.

To cater to that curiosity, in this blog, we’ll talk about all the possible questions you might have about EMF testing. Starting from what it is. So, without further ado, let’s get on it and answer your curiosity right away.

What is EMF Testing?

You might have already gotten an idea about EMF testing just by reading the name. However, if you didn’t, let us simplify it. EMF testing involves measuring and assessing electromagnetic fields. Now, these could be emitted by any electrical device, anywhere. Some of the examples are:

  • Power lines
  • Electrical devices
  • Wireless communication technologies

Testing for EMFs is the best way to determine their frequency, intensity, and, most importantly, the health risks associated with their exposure. Furthermore, EMF testing is an important part of our day-to-day activities. It helps ensure regulatory compliance and identify potential hazards. Not only this, but you can also make informed decisions with the help of results generated through these tests. You will have a better idea about the placement of electronic devices in different settings. So, this is one important factor you might not have known you need.

Why is EMF Testing Necessary?

Regulatory Compliance

In the United States, there are acceptable limits to the EMF levels in different environments. Let’s say states. The U.S. government specifies such regulations in six different states, including:

  • New Jersey
  • New York
  • Montana
  • Florida
  • Oregon
  • Minnesota

With EMF testing in place, you can ensure these regulations are met. Eventually, this saves you from any potential upcoming legal issues. If you ask us, this alone is a major reason to get EMF testing done and what makes it necessary.

Risk Assessment

EMF testing is the best way to assess the potential risks associated with different EMF sources. These tests help you make informed decisions related to the placement of electromagnetic devices, infrastructure, and equipment. All of this is to minimize exposure risks.


Conducting EMF tests and acknowledging the results is the best way to know what’s coming your way. All of this can make us aware of the presence of EMFs and their potential impacts. With such information, you can take measures to reduce exposure. Not only this, but you can also make informed choices regarding using the technology to minimize exposure.

How to Test EMF Levels?

Selecting the Right Equipment

The first thing you need to sort out is choosing the right EMF meter. Your choice will vary based on what specific field you plan on measuring. It could be magnetic, electric, or radiofrequency (RF) radiation. Now, for each of these, you can use specific meters.

For magnetic fields, you can go with the Trifield TFS EMF Meter. Whereas, if your interest lies in testing for electric fields, you can choose Extech 4800823. Lastly, you can use Cornet ED88TPlus EMF RF Meter for RF radiations.

Side note: All of these meters are just examples. You can use other meters, too, for detecting the field of your choice.

Calibrating the Meter

Once you’ve decided which meter you’re using, you need to ensure you’ve set it up correctly. There are no hard and fast rules you need to follow here. You just need to follow the manufacturer’s instructions to calibrate it correctly. Note that this is a super important step because if you don’t calibrate your meter correctly, there might be inaccuracies in the readings.

Identifying the Source

Once your device is all set. It’s time for action. For this, you need to determine the source of EMFs you want to measure. Now, the sources can vary from one field to another. Some of the major EMF sources are:

  • Power lines
  • Electrical appliances
  • Wireless devices

Measuring the Fields and Recording Data

Whichever meter you choose, use it to take measurements at different locations and distances from the source. You shall move the meter around to capture readings from different heights and angles. This is done because EMF levels can vary depending on the placement and orientation of the source.

Once the measurement is done, you need to record it. When making the records, don’t forget to add relevant information like:

  • Location
  • Date
  • Time
  • Type of EMF you’re measuring

Analyzing Results and Taking Action

To analyze the recorded data, you need to compare it with the relevant guidelines or standards. This will help you determine whether the EMF levels are within acceptable limits. Once done, evaluate the results in the context of regulatory requirements and risks.

Furthermore, based on the EMF testing results, take appropriate actions. This step will help you mitigate any identified risks. And as a plus, you can also reduce exposure levels if needed. Now, how can you do that? The steps can include repositioning electronic devices, implementing shielding measures, or using alternative technologies.

Regular Monitoring

You’re not done yet, just in case you were thinking you were. After all this, you also need to periodically retest for EMF levels to ensure they’re within acceptable limits. This is especially the case of dynamic environments that meet gradual changes in equipment or infrastructure. As this affects exposure levels big time.


EMF testing plays an important role in our world today. It helps assess the EMFs that various sources in the modern world emit. This gives us valuable insights into the potential health risks, regulatory compliance, and optimization of technology use.

With a keen understanding of EMF testing, you get to make informed decisions. These could be about mitigating exposure risks or safeguarding human health. With the advancement in technology, our reliance on electronic devices also grows. Thus, this will further emphasize the significance of EMF testing. As this is one way to ensure the safe and responsible use of electromagnetic fields around us.

Ready to ensure the safety of your home or workplace? Contact AmeriSpec Inspection Services today for expert EMF testing and comprehensive inspections. Protect your health and peace of mind with our trusted services. Schedule your inspection now!