Best EMF Meters for Measuring Electromagnetic Fields

Review & Comparison, Last Update September 29, 2017
It's crucial to be aware of levels of electromagnetic radiation emitted by electrical appliances since high radiation levels pose a significant threat to people's health. With that, measuring electromagnetic fields is not a hard task if you have an EMF meter. This is a device specially designed for such measurements. Our review will help you choose the best EMF meter for your needs. ...Read more ...Read less
BEST 2017
PROS
CONS
OUR VERDICT
Type
Measurements Types
Frequency Range
Measurement Range
Accuracy
Size
Warranty
 
PROS

The EMF detector has the battery test feature. To check the battery status, you just need to turn the regulator to the corresponding position.

CONS

Has a relatively large size.

OUR VERDICT

Without a doubt, the Trifield 100XE is one of the easiest to operate EMА meters on the market. Intended for home use, the detector can measure AC magnetic fields, AC electric fields, and microwave radiation.

detailed parameters
Type

Analog

Measurements Types

AC magnetic fields,
AC electric fields,
radio/microwaves

Frequency Range

Magnetic Fields & Electric Fields:
40 Hz – 100000 Hz 

Radio Microwave:
50 MHz – 3000 MHz 

Measurement Range

Magnetic Fields or Electric Fields:
0 - 100 mG (for electric field multiply by 10 to get v/m)

Magnetic Fields:
0 - 3 mG

Radio Microwave:
26 mV/m - 26.6 V/m

Accuracy

Magnetic Fields:
+/- 20% of reading;

Electric Fields:
+/- 30% of reading;

Radio Microwave:
½ x to 2 x of reading

Size

5.0 x 2.6 x 2.4 inches,
8 oz

Warranty

1 year

PROS

In addition to displaying the readings on the screen, the meter can notify you of exposure levels via audio signals and color LEDs.

CONS

Some users noted that the operating manual isn't detailed enough.

OUR VERDICT

Thanks to multiple measurement options, the Cornet ED78S EMF RF Meter is an excellent solution for a wide range of measurement tasks and comprehensive analysis of the environment.

detailed parameters
Type

Digital

Measurements Types

AC magnetic fields,
Radio/microwaves

Frequency Range

Magnetic Fields:
50 Hz to 10000 Hz (low sensitivity),
50 Hz to 1000 Hz (high sensitivity)

Radio Microwave:
100 MHz to 8000 MHz 

Measurement Range

Magnetic Fields:
1 mG - 600 mG (low sensitivity),
0.1 mG - 10 mG (high sensitivity)

Radio Microwave: 14 mV/m - 26.2 V/m

Accuracy

+/- 3.5dBm

Size

8 x 4.7 x 1.5 inches,
3.2 oz

Warranty

90 days

PROS

As using the audio signal is not always convenient when determining the parameters of an electromagnetic field, the meter offers the volume control feature. 

CONS

The switch on/off button is very sensitive.

OUR VERDICT

If you'd like to start investigating paranormals, you are unarmed without the Ghost Meter EMF Sensor! The appliance will help you find out whether there are any ghosts around.

detailed parameters
Type

Analog

Measurements Types

AC magnetic fields

Frequency Range

50 Hz -1000 Hz

Measurement Range

0 mG - 5 mG

Accuracy

N/A

Size

8.5 x 6.5 x 1.5 inches,
3.2 oz

Warranty

1 year

PROS

The model features a convenient kickstand allowing to secure the unit in vertical position. This can significantly simplify the use of the EMF detector.

CONS

The device doesn't generate warning signals when in the danger area with higher than normal level of electromagnetic radiation.

OUR VERDICT

If you need a simple and reliable device for measuring electromagnetic fields, the Lutron 822-A is a great solution for the price.

detailed parameters
Type

Digital

Measurements Types

AC magnetic fields

Frequency Range

30 Hz - 400 Hz

Measurement Range

0.1 mG - 199.9 mG

Accuracy

4% ±3 digits at 50/60 Hz

Size

~5.1 x 2.7 x 1 inches,
5.6 oz

Warranty

1 year

PROS

The wide button on the front allows switching the device on/off with no efforts.

CONS

Replacing the battery requires removing the cover.

OUR VERDICT

If you are planning to start investigating paranormals, the K2 Black EMF Meter is a no brainer! This model has gained the critical acclaim of many experienced ghost hunters.

detailed parameters
Type

LED light scale

Measurements Types

AC magnetic fields

Frequency Range

50 Hz -20000 Hz

Measurement Range

0 mG - 20mG

Accuracy

5% at 50-60 Hz

Size

5.5 x 2 x 1 inches,
3.8 oz

Warranty

90 days

What is an EMF Meter?

It goes without saying that it's important to systematically detect and locate different harmful factors in the area where you live or work as they can significantly deteriorate your health. EMF meters are designed for measuring the density of electromagnetic fields, which are present literally everywhere because of numerous equipment and devices that generate the fields. That makes such meters important instruments that help you stay aware of levels of EM radiation coming from electrical and electronic devices around you.

Actually, all electrical/electronic equipment, mobile devices are the source of electromagnetic radiation. With that, under certain conditions, EMF electromagnetic fields may have a negative impact on people's health. Therefore, it's crucial to know exposure levels coming from electronic equipment and protect yourself using an EMF detector as a radiation measurement tool. Additionally, this kind of devices is widely used for paranormal investigation, so, if you're planning to get engaged in this activity, an EMF meter is the right choice.

What Features to Compare

Type
In order to select the most suitable EMF Meter, you need to take some important parameters into account. First of all, decide on the type of the measuring tool you want to have. With analog (with a scale and a needle) and digital (with a display) EMF meters with different types of readings indication each of these types has its own advantages and drawbacks. While digital EMF devices are considered to take more accurate measurements the analog ones use to offer a shorter response time. The second crucial factor is the type of the field measured with your device: you need to find out whether you need a meter for detecting a magnetic field only or an electric, microwave radiation as well. Thus, if you're interested in having a handheld appliance for measuring all types of electromagnetic radiation, you should select a model which combines the corresponding capabilities.

Frequency Range
The frequency range plays an important role in measuring the density of electromagnetic fields as getting a complete picture of the EMF parameters in a particular place requires the tool to be capable of measuring in a wide frequency range. Additionally, we recommend paying attention to the supported range of field density values measured. Thus, if you're looking for a model for serious tasks, you should select the device with a wider measurement range.

Size
For some users, an EFM meter size matters a lot. In general, these portable devices rarely have large dimensions, however, if you're planning to carry one of these quite often you need to consider the size factor. As a rule, compact models are great solutions for the use in any place. For home and indoor applications, the size of the appliance turns out to be not that important.

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Trifield 100XE

Protection Against Invisible Enemies

Unfortunately, not all threats are visible. However, there are solutions allowing you to fight even such threats. Using the Trifield 100XE EMF Meter may be regarded as a great protecting measure against serious issues caused by some categories of EMF. The distinguishing feature of that meter is that it is capable of measuring different types of electromagnetic radiation at a time: low-frequency electric and magnetic fields generated by AC power-fed electrical appliances as well as radio frequencies produced by smartphones, microwave ovens, and various devices using a wireless connection technology.
The model is very simple to operate and user-friendly. There is a convenient knob on the 100XE front panel for switching between different types of measurement. In addition, setting the knob to corresponding positions allows you to learn about the battery charge level as well as turn off the device when necessary.
Getting back to the Trifield 100XE EMF versatility, we should mention the two modes for measuring magnetic fields. The first mode provides measurements in the range from 0 to 100 milligauss, while the second one allows getting more accurate readings within the range of 0 - 3 milligauss due to a smaller increment. Thus, moving around the house, it'll be possible to measure electromagnetic fields and detect the exact location of dangerous sources of radiation such as PC monitors, TV sets, electric cookers and other smaller electrical appliances. To measure a radiation exposure level, all you need is to turn the knob to the specified position and see the readings on the scale. Based on the readings you can get actual volt/meter values by multiplying the scale readings by 10.

Review of Trifield 100XE EMF Meter

Microwave Radiation Measurement

The 100XE by Trifield has a dedicated mode for measuring high-frequency EMF. When switched to this mode, you can determine whether your microwave oven has its door tightly sealed or how strong is the radiation coming from your mobile phone.

Trifield 100XE EMF Meter in the use

Simplicity as an Advantage

As we mentioned earlier, the Trifield 100XE EMF Meter is a very simple to use tool with a wide measurement range. These features allow the model to compete with professional and more expensive models. The only drawback is its size. The device is difficult to put and carry in the pocket. As for the rest, the EMF meter is a nice solution capable of meeting most of your needs.

Detailed review of Trifield 100XE EMF Meter

Tips on the Scale

Let's take a look at the scale of 100 XE. Under the digits, you can see a red dotted line which passes into a solid one. With that, if the needle reaches the solid line, it means you are in the area with the radiation level exceeding the accepted value. All you need to do then is to detect the source of EMF radiation.

Trifield 100XE EMF Meter application

Additional Info

    Manufacturer


Trifield 100XE
Trifield 100XE
 

Cornet ED78S

A Small Device with Advanced Capabilities

Despite its small size, the Cornet ED78S EMF RF Meter has a really tremendous potential. The meter is designed for measuring both magnetic fields and microwave radiation. The model has three buttons for controlling all device functions and the digital display showing detailed measurement results. Choosing the microwave measurement, it's possible to determine whether the radiation generated by your cell phone, Wi-Fi router, digital TV, a gaming console is dangerous to your health. For figuring this out, just take the meter close to the device examined. Alternatively, you can take EMF measurements in other unexplored parts of your home or building. The Cornet ED78S is designed to provide two measurement modes with the first mode covering a wider range and the second more offering more precise readings (with an increment of 0.1 mG) in a narrower range. The fact that this EMF meter displays readings in uT and mG adds to its convenience.

Review of Cornet ED78S EMF RF Meter

A More Accurate and Convenient Measurement Display

The feature that makes the ED78S EMF meter an outstanding tool is its capability to group and display the measured values as a bar graph built using the last 32 values measured from the moment the device was turned on. This feature is very convenient for specific cases of measuring EMF fields generated by smart meters and similar devices. 

However, the Cornet ED78S EMF RF model offers other important measurement-related features. For example, the "Hold" function allows saving the registered value on the meter screen. It may be particularly useful if you need to record and compare some of your readings. 
Yet that's not all. In the lower part of the screen, just below the current measurements, you are shown the maximum value registered during the last measurement cycle. All these functions allow acquiring more accurate readings and carry out a more detailed EMF parameters analysis.

Cornet ED78S EMF RF Meter in the use

A Timely Warning

Another important benefit that the ED78S offers its users is the built-in speaker, which you can activate to hear a beeping signal notifying you of a dangerous EMF level detected. No doubt, this feature is as efficient as it is simple.

Detailed review of Cornet ED78S EMF RF Meter

A Valuable Addition

The ED78S model by Cornet provides yet another way to determine whether you are in the area with a dangerously high exposure level of electromagnetic or microwave radiation. To the display right, there is a color LED scale, which shows the magnitude of the current radiation level. To get the full picture you can check the legend below the meter buttons specifying the radiation value ranges corresponding to each color on the vertical LED scale.

Cornet ED78S EMF RF Meter application

Additional Info

    Manufacturer


Cornet ED78S
Cornet ED78S
 

The Ghost Meter EMF

For Newbie Ghost Hunters

If you want to find out whether ghosts and other paranormal phenomena are real, we suggest taking advantage of some dedicated equipment. For that, you don't need to carry heavy munitions on your shoulders as it's very uncomfortable and difficult. Take advantage of the Ghost Meter EMF Sensor instead!
Allegedly when any paranormal phenomena are taking place, there can be observed some changes in the ambient electromagnetic field. Thus, this handheld tool will always let you know when to press "REC" on your video or photo camera. The Ghost Meter EMF Sensor itself is a compact device that fits in your pocket easily. The operating principle of the device is very simple — you just need to press the On/Off button. When the measurement session is finished, we advise switching the device off to save the battery charge.
The measuring range supported isn't that wide, from 0 to 5mG. However, the meter can be used for the household needs to measure magnetic fields coming from electric and electronic equipment. Of course, you shouldn't expect the device to show extremely accurate EMF readings but it's a definitely better solution compared to smartphones used with different mobile apps.

Review of The Ghost Meter EMF Sensor

As Ghosts Like the Night

Taking into account the fact that Poltergeist is believed to be especially active at night or in the darkness, the manufacturer equipped the meter with some extremely convenient features. Since meter display readings are hard to see in poor lighting, the meter comes with a buzzer to produce an audio signal when dangerous exposure levels are detected. In addition, the backlight of the meter starts flashing. So don't miss your chance to prove the existence of the otherworld!

The Ghost Meter EMF Sensor in the use

In the Calmness of Silence

As for the sound signals on this device, the manufacturer provided for one more convenient feature. The Ghost Meter EMF Sensor is designed with a wheel to control the audio signal volume. Thus, if you need to make audio records along with the measurements, setting the volume to the minimum leaves you with no worries about the meter sound signals interfering with ambient sounds.

Detailed review of The Ghost Meter EMF Sensor

It Takes Two Hands To Catch a Ghost

Ghost hunting isn't an easy task. For this, apart from the meter, you might need something else. Thanks to the small size of the meter, you'll be able to hold a camera, voice recorder or a crucifix.

The Ghost Meter EMF Sensor application

The Ghost Meter EMF
The Ghost Meter EMF
 

Lutron 822-A Digital

Takes You a Few Minutes to Master

If you think that an EMF meter is, in any case, a complicated device, you most likely have never dealt with the Lutron 822-A Digital EMF Meter. Actually, this is one of the simplest and most convenient appliances for measuring magnetic fields we have seen so far. There is only one switch needed to control the meter. If you want to turn the meter on or select a specific type of measurements (mG or microT) you just need to turn the switch to the required position. Despite its entry-level market positioning, this model provides comparatively accurate readings and offers a wide measurement range (from 0.1 to 199.9 mG).
In the most cases, measuring the actual level of EMF radiation in your house or any building requires you to simply take a walk through the house or the building with the Lutron 822-A. However, the unit is incapable of warning you, other than showing the readings, when you enter an area with dangerous magnetic field level, which is a downside. Indeed, this EMF meter comes with no warning lights or sound alert system so you need to monitor the readings carefully when taking measurements. By the way, the level of radiation in the 2.5 - 3 mG range is considered to be relatively safe for adults. For children, the upper limit is 2 mG.

Review of Lutron 822-A Digital EMF Meter

Few Nuances

Although some users prefer to use analog devices, many of you will be glad to find out that the Lutron 822-A Digital EMF Meter is equipped with a digital display. The benefit is that you'll get accurate readings in no time. For its operation, the meter requires a single 9V battery.

Lutron 822-A Digital EMF Meter in the use

Do You Need an EMF Meter?

Unfortunately, many people underestimate the importance of an EMF meter. However, this tool can really warn you about the danger of being exposed to high-density EMF radiation, protecting your health. The point is that high radiation levels can cause many serious diseases such as cancer, Alzheimer disease, heart disease, infertility. So, it's better to think twice before discarding the need of such device for your household.

Detailed review of Lutron 822-A Digital EMF Meter

An Easy to Handle Device

For better practicality, the meter is equipped with a special kickstand. Thanks to it, you can secure the meter in a vertical position! It's particularly useful when you need to move the device you'd like to test closer to the meter.

Lutron 822-A Digital EMF Meter application

Additional Info

    Manufacturer


Lutron 822-A Digital
Lutron 822-A Digital
 

K2 Black

Ghosts Won't Hide From You

EMF meters are frequently used for various hobbies and the investigation of paranormal phenomena is one of them. According to some sources, ghosts and other paranormal entities are the sources of a powerful magnetic field. Many ghost hunters agree on the opinion that the KII EMF Meter is one of the best devices for their specific tasks. The model was designed to be maximally effective and convenient in darkness. It comes without no screen or a scale with a needle. The device shows the measurement results via the five LEDs. Green indicators inform that the EMF radiation level is within the normal limits while the red ones warn you that you might be not alone if you know what we mean. We'd like to write a few words on the power on/off button. Actually, it's wide enough to be kept pressed while you take your measurements with no discomfort. To turn the unit off, you just need to release the button. Another significant advantage of this EMF meter is that it is made of a sturdy plastic. Some users report that the KII case doesn't crack or split even if dropped on the ground.

Review of K2 Black EMF Meter

For Measuring Magnetic Fields of up to 20 mG

The KII EMF Meter allows measuring magnetic fields in the range from 0 to 20 mG. Obviously, this is not the widest range seen in similar products, though, the meter easily detects exposure levels in the range from 5 - 10 mG.

K2 Black EMF Meter in the use

Other Applications

Apart from ghost hunting, the meter can be particularly useful for domestic purposes. As you may already know, high EMF radiation levels affect our health, causing various serious diseases. Since all electrical devices, we use at home or indoors are potential sources of high-level electromagnetic radiation we need to know the level of threat they pose to us. Using the KII EMF Meter can prove helpful in case of detecting the sources of especially strong electromagnetic radiation, which can be harmful. As we mentioned above, the appliance doesn't offer a wide measuring range, however, it'll definitely warn you of the radiation exposure danger.

Detailed review of K2 Black EMF Meter

Efficient Battery Power Consumption

Another pro of that EMF Meter is its moderate battery power consumption and that it requires only one 9V battery for the operation. Typically, the device can run for about 3-6 months on a single battery charge. With more modest use, you'll need to replace the battery after about one year of operation.

K2 Black EMF Meter application

Additional Info

User Manual     Manufacturer


K2 Black
K2 Black
 

FAQ:

Q: Can electromagnetic fields be harmful to people's health?
A: Electromagnetic radiation has an effect on human body, and it can really affect our health negatively, especially in the long term. To put it simply, EMFs have effects on human bodies at the cellular level. Electromagnetic radiation heats up body cells and tissues with the amount of affected cells and tissues determined by the level of the EMF people are exposed to. Some studies indicate a potential correlation between the level of radiation of cell phones and cancer risks. Moreover, new research demonstrates that electromagnetic fields can even cause oxidative stress to human body cells. This stress can damage all parts of our cells, including the genetic material contained within each cell (DNA), rendering the cells incapable of performing their functions in a proper way. 

Q: How can I locate the source of electromagnetic fields if my EMF meter shows high readings?
A:  In the most cases, the source of the field (electric, magnetic, or radio) is located in the direction of the strongest signal. You need to keep in mind that each circular line of a magnetic field around the conductor (wire) goes through the conductor axis and lies in the same plane with the conductor axis. Therefore, alongside the conductor, the field lines are vertical, while underneath the wire, they are horizontal. The right orientation of a 1-axis meter may cause the meter to point at the wire, or straight up and down, or horizontal — it actually depends on the orientation of the sensor inside the meter and the position of the meter relative to the wire. Readings of the 3-axis EMF meter don't depend on the meter orientation, so the device can be positioned in virtually any direction and still offer a correct location of the field source. To determine the exact location of the source, move the meter towards and away from a suspected source of EMF and check if the measured values increase or decrease correspondingly.

Q: Do Wi-Fi and Bluetooth networks pose risks to my health?
A:
  Generally, Wi-Fi signals are considered to be harmless and it's almost impossible for them to produce a harmful effect on humans. The density of the field generated by these wireless networks is known to drop quickly over short distances, so the radiation energy that reaches your body is extremely weak. At average operating distances, the intensity of Wi-Fi signals is so low that it's not worth worrying about. Moreover, Wi-Fi signals are non-thermal, therefore this type of wireless connection doesn't cause heating cells or tissues. You may also consider using an Ethernet cable to turn your wireless router off when it’s not needed. Moreover, try to place your router at the maximum distance from your desk or bed that still allows getting a reasonably strong signal while reducing the exposure level. 


Sources:

1. EMF Meters: How to Choose an EMF Meter, a Basic EducationeBay. June 10, 2016.
2. Why Use An EMF Meter When Ghost Hunting? TurboFuture. July 26, 2015.
3. EMF measurementWikipedia. April 18, 2017.
4. What are magnetic fields? Khan Academy. 
5. What is Electric Field? electrical4u.
6. Electric & Magnetic FieldsNational Institute of Environmental Health Sciences. 
7. Karen Frazier How EMF Meters Work, Lovetoknow.
8. Patrick Cameron How Does an EMF Detector Work? SCIENCING. April 24, 2017.
9. EMF Meters, Tech-FAQ.

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Publish Date: 2017-08-01 16:49:00