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8 Best EMF Readers in 2024 Reviews & Buying Guide

If you’ve landed here seeking recommendations for top-notch EMF readers, whether meters or detectors, chances are you’re concerned about the electromagnetic fields (EMF) permeating our modern environment. These devices are indispensable for gauging the strength and presence of electromagnetic radiation emitted by electronic gadgets, power lines, and other sources. Whether you aim to assess EMF levels at home or in your workplace for health considerations, or simply desire a better grasp of your surroundings, a dependable EMF reader is indispensable.

Our team of experts has rigorously assessed and trialed numerous EMF readers to curate a list of prime recommendations. We recognize the paramount importance of precision, dependability, and user-friendliness in selecting the ideal EMF reader. To ensure our recommendations are comprehensive and trustworthy, we’ve scrutinized three pivotal factors:

  • EMF Range: It’s vital to check the supported EMF range of an EMF reader, indicating the strength of EMF it can measure. Typically, EMF readers offer range options like 0 to 100 mG, 0 to 500 mG, and sometimes even higher for detecting high-strength EMFs.
  • Frequency Range: In addition to detecting high-strength EMF values, your EMF reader should be compatible with various EMF frequencies. Most EMF readers provide a frequency range such as 50 Hz to 20 kHz or even 0 Hz to 400 kHz, with a broader frequency range being advantageous.
  • Sensor Type: When purchasing EMF readers, you’ll encounter primarily two sensor types: 1-axis and 3-axis. Of these, a 3-axis sensor measures EMF across three axes, rendering it a more versatile option for accurately assessing EMF strengths.

Beyond these considerations, there are still a few factors to ponder before investing in EMF readers. Therefore, each of the top-rated EMF readers listed below is accompanied by detailed specifications and features, along with a comprehensive “Buying Guide” empowering you to make an informed decision by the end of this compilation.

9 Best EMF Readers in 2024

Best EMF ReadersEMF RangeFrequency RangeWarrantyBuy Now
TriField EMF Reader0 to 100 mG40 Hz to 100 kHz1 YearCheck On Amazon
Color Tree EMF Reader0 to 5 mG50 Hz up to 20,000 Hz--Check On Amazon
GQ EMF-390 EMF Reader0 to 500 mG0 Hz to 400 kHz1 YearCheck On Amazon
KII EMF Reader0 to 20 mG50 Hz to 20 kHz--Check On Amazon
ERICKHILL EMF Reader0 to 1000 mG--3 YearsCheck On Amazon
TESMEN EMF Reader 0.1-200mG/200-2000mG40 Hz to 500 kHz--Check On Amazon
Kydely EMF Reader0 to 20 mG50 Hz to 20 kHzLifetimeCheck On Amazon
Gupgi’s EMF Reader0 to 20 mG50 Hz to 20 kHz--Check On Amazon

Best EMF Readers in 2024: Reviews

1. TriField EMF Reader

TriField EMF Reader

At the forefront of our selection is the TriField EMF Meter, a top-tier option designed to effectively detect electromagnetic fields with precision and adaptability. It excels in identifying three primary types of EMF pollution: Magnetic, Electric, and Radio/Microwave Fields. Whether your concerns lie with 5G, cell towers, WiFi routers, Bluetooth devices, AC Power Lines, or Smart Meters, this device is your comprehensive solution. Its dual-mode functionality empowers you to select between standard or weighted frequency responses, highlighting their impact on the human body.

Manufactured in the USA by AlphaLab, Inc., this meter offers a user-friendly experience. With a large LCD for crystal clear, adjustable backlight readings, and peak hold capturing fast pulses, it provides accurate measurements. The AC magnetic measurements are 3-axis, ensuring quick readings regardless of meter orientation. A unique feature of this meter is its ability to perform both standard AC readings and weighted readings, offering flexibility in measurements.


  • Detects: Magnetic, Electric, Radio/Microwave Fields
  • Measurement Type: Electromagnetic and RF Fields
  • Dimensions: 1.5 x 2.75 x 5.25 inches
  • Power Source: Battery Powered


  • Comprehensive EMF Detection
  • User-Friendly Interface
  • Large LCD for Accurate Readings
  • Dual-Mode Functionality


  • Limited Range for 5G RF Testing
  • Not a budget-friendly option

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2. Color Tree EMF Reader

Color Tree EMF Reader

For those intrigued by the paranormal and enthusiasts of ghost hunting, the EMF Detector Color Tree emerges as an optimal choice. Crafted with quality in mind, this compact device serves to gauge electromagnetic fields, aiding users in pinpointing appliances emitting significant emissions. Tailored for uncovering unexplained phenomena, this detector operates seamlessly on a single battery and furnishes EMF measurements across a broad spectrum ranging from 50Hz to 20,000Hz.

Its user-friendly push-on/push-off mechanism renders it not only portable but also hassle-free to operate, durable, and dependable. Featuring an LED light scale, it delivers lucid readings irrespective of lighting conditions, ensuring a highly responsive user experience. Users commend its efficacy in monitoring EMF levels to safeguard against potential prolonged exposure risks. Moreover, some customers laud its enjoyable and practical utility during paranormal investigations.


  • Measurement Range: 50Hz-20,000Hz
  • Power Source: Single Battery
  • Portable and Easy-to-Use
  • LED Light Scale for Clear Readings


  • Compact and Portable Design
  • Easy Push-On/Push-Off Operation
  • Wide Spectrum EMF Measurement
  • Reliable and Rugged Construction


  • Issues with LED light functionality

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3. GQ EMF-390 EMF Reader

GQ EMF-390 EMF Reader

The GQ EMF-390with its sleek design and advanced functionality acts as a comprehensive electromagnetic radiation detector, offering a 3-in-1 solution for EMF, ELF, and RF detection. Crafted by GQ Electronics in the United States, this portable device is highly esteemed by individuals, organizations, and governmental bodies like the US Department of State. Its versatility enables the identification of common EMF/RF sources such as Power Lines, WiFi/Cell phones, Cell towers, Microwaves, and more.

Equipped with multiple high-sensitivity sensors, this EMF meter can accurately detect signals from power lines, smart meters, cell phones, and microwaves, providing instantaneous readings. With features like the built-in RF Spectrum Analyzer and GQ RF Browser, users can access precise visualizations of RF radiation on the device’s screen, ensuring rapid detection, particularly for 5G signals. Additionally, the device’s flash memory facilitates data logging for further analysis, and users can easily download the recorded information when connected to a PC.


  • Maximum Range: 10 Meters
  • Frequency: 10 GHz
  • Portable and Compact Design
  • Built-in Flash Memory for Data Logging
  • USB Port for Communication and Charging


  • Comprehensive 3-in-1 Detection
  • Ultra-Fast Response to RF Signals
  • Real-Time Data Logging and Analysis
  • Visualized RF Spectrum Analyzer


  • Learning Curve for Effective Use
  • Mixed Opinions on Coverage Range

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4. KII EMF Reader

KII EMF Reader

The sleek black KII EMF Meter is one of the preferred options due to its rapid response to changes and spikes in electromagnetic fields. Operating on 9-volt batteries, this portable meter ensures consistent performance throughout prolonged investigations. Its LED light scale, UV reactive color label, and compact design contribute to its indispensability for both enthusiasts and professionals.

For seasoned paranormal researchers or those with a casual interest in their electromagnetic surroundings, the K-II EMF Meter Deluxe offers a comprehensive experience. Whether utilized for paranormal studies or everyday EMF detection, this device presents a dependable and responsive solution for identifying mysterious occurrences.


  • Dimensions: 2″D x 5.5″W x 1.25″H
  • Voltage: 9 Volts
  • Portable and Easy-to-Use
  • UV Reactive Color Label
  • Applicable for Paranormal Research


  • Instantaneous EMF Response
  • Easy-to-Read LED Light Scale
  • Portable and Reliable Design
  • UV Reactive Color for Enhanced Visibility


  • Inconsistencies in LED Light Display
  • Occasional Issues with Vertical Holding

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Ranked at number five, the ERICKHILL EMF Meter emerges as a top-tier digital electromagnetic field radiation detector, offering exceptional reliability and rechargeability at an unbeatable market price. Featuring an inbuilt electromagnetic radiation sensor, this device delivers precise measurements showcased on a crystal-clear LCD digital display. Its versatility shines through as it serves as an indispensable tool for conducting EMF inspections at home, assessing office environments, engaging in outdoor pursuits, and even delving into ghost hunting endeavors.

With provision for optional units to measure magnetic field radiation (mG/µT) and electric field (V/m), this EMF detector signals with a light alarm when readings surpass safe thresholds. Its ergonomic design enables effortless one-handed operation, facilitating ease of movement during field measurements. Additionally, the auto power-off function kicks in after 5 minutes of inactivity, conserving battery life effectively. Users commend its utility in evaluating a diverse range of household appliances, including televisions, computers, microwaves, and cellular towers.


  • Electric Field Range: 1V/m-1999V/m
  • Magnetic Field Range: 0.01μT-99.99μT / 0.1 mG – 999.99 mG
  • Rechargeable and Portable Design
  • Optional Sound-Light Alarm
  • Auto Power Off after 5 Minutes


  • Precise Magnetic and Electric Field Measurement
  • Rechargeable for Sustainable Use
  • Multifunctional with Optional Units
  • Sound-Light Alarm for Safe Readings


  • Limited Detection Range for WiFi and Phone Signals
  • USB Charging Restriction for Field Use

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6. TESMEN EMF Reader


TESMEN presents a versatile electromagnetic field radiation detector that combines EF, RF, and MF measurement capabilities in a compact 3-in-1 design. Ideal for various applications such as home or office EMF inspections and even ghost hunting endeavors, this detector ensures accurate detection of electromagnetic fields. Boasting a user-friendly interface with a three-color backlight display and audible alarms, the Hound-200 simplifies the process, offering numerical readings and trend graphs for easy interpretation of field-strength data.

Featuring advanced functionalities including MAX measurement, Peak measurement, and Data Hold, complemented by a large 2.26-inch LCD screen, this device facilitates a thorough understanding of field strength values. Additionally, its automatic shutdown feature and low battery indicator enhance user convenience and ensure energy efficiency, eliminating concerns about battery life during prolonged usage.


  • Four Ranges: AC Magnetic, AC Electric, RF/Microwave
  • Frequency Range: AC Magnetic/Electric: 40-500Hz, RF/Microwave: 50-3.5GHz
  • Automatic Power Off: After 15 minutes of inactivity
  • Low Battery Indicator: Alerts when the battery voltage drops below the operating level


  • Versatile 3-in-1 detection for various electromagnetic fields.
  • User-friendly design with a clear three-color backlight display.
  • Audible alarms provide real-time intensity and frequency feedback.
  • Comes with MAX measurement, Peak measurement, and Data Hold features.


  • Steeper learning curve for users not familiar with electronics.
  • Some users find the device’s construction a bit light and thrown together.

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7. Kydely EMF Reader

. Kydely EMF Reader

Kydely’s handheld device is bound to leave a lasting impression, just as it did for us. It boasts a multi-segment LED display, ensuring users have a clear and easy-to-read depiction of electromagnetic fields (EMFs). Engineered to gauge frequencies spanning from 50 Hz to 20,000 Hz, this detector aids in pinpointing devices emitting elevated levels of radiation. 

Its link to reported inexplicable occurrences adds an intriguing facet to paranormal inquiries. Powered by a single battery, the Ghost Hunting Detector delivers precise and convenient EMF assessments, providing readings within the 5 milligauss (mG) range.


  • Easy-to-read multi-segment LED display.
  • Single-battery operation for portability.
  • Measurement Range: 50 Hz to 20,000 Hz.
  • Detects EMF levels within a 5 milligauss range.
  • Compact dimensions for convenient handheld use.


  • Accurate and reliable EMF measurements.
  • Multi-segment LED display for clear readings.
  • Single-battery operation for portability.
  • Ideal for both beginners and experienced users.


  • Users find it to be cheaply made.
  • Poor overall performance.
  • Not suitable for professional-grade investigations.

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8. Gupgi’s EMF Reader

Gupgi’s EMF Reader

Gupgi’s tester is a compact and effective device crafted for detecting ghosts and electromagnetic fields (EMF). Its small size and LED lights that are easy to interpret make it a practical option for novices and seasoned users. 

Covering a broad frequency range from 50 Hz to 20,000 Hz, this detector precisely gauges EMF levels, empowering individuals to pinpoint sources emitting substantial radiation and make well-informed choices regarding exposure. Whether it’s day or night, the vibrant LED lights offer distinct readings, guaranteeing dependable detection regardless of the surroundings.


  • Material: ABS
  • Accuracy: +/- 5%
  • Dimensions: 14.3cm x 5.2cm x 2.5cm (L *W * H)
  • Detection Range: 0 to 200,000 gallons
  • Detection Frequency: 30-20,000 Hz
  • Battery: 1 9V battery


  • Compact and portable design for on-the-go detection.
  • Easy-to-read LED lights for quick and clear EMF readings.
  • Sturdy construction ensures reliability and durability.
  • The wide frequency spectrum covers a broad range of EMFs.


  • Inconsistent or inaccurate readings.
  • Requires constant upright positioning for accurate detection.
  • Limited sensitivity may affect performance in certain environments.

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Buying Guide for the Best EMF Readers

There are a lot of scenarios where you might want to check the EMF of an appliance or any general spot in your home or office. You can use these to find issues with appliances as well as work with electrical wiring. Therefore, a few of the best EMF readers have been stated up above. To help you choose the right one, all of them have their important specifications and features well explained. And in case you want to know more, consider checking this detailed buying guide for the best EMF readers:

1. EMF Range

The EMF range, indicating the strength a reader can measure, is a pivotal consideration. Ranges like 0 to 20 mG, 0 to 100 mG, 0 to 500 mG, and even 0 to 2000 mG are available. Opting for a higher range is advisable for measuring high-strength EMFs effectively

2. Frequency Range

Examining the supported frequency range is crucial for gauging the reader’s compatibility with various EMFs. Models offer ranges like 50 Hz to 20 kHz, 0 Hz to 100 kHz, and even 0 Hz to 400 kHz. A reader with a broad frequency range is recommended for enhanced versatility.

3. Sensor Type

EMF readers commonly feature 1-axis and 3-axis sensors. While both deliver accurate results, a 3-axis sensor is superior. This sensor measures in three axes, ensuring precise and comprehensive EMF value measurements.

4. Display and Controls

After obtaining EMF readings, checking and recording them is essential. Some readers incorporate basic LED lights, while others boast LCD and LED displays, providing precise EMF values. For those using all-in-one EMF readers, the display can also assist in monitoring surrounding RF signals.

5. Warranty

Considering the scientific and industrial applications of EMF readers, ensuring their durability is crucial. It is advisable to check the included warranty, typically ranging from 1 year to a lifetime. A lengthier warranty period adds peace of mind, ensuring the reader’s long-term reliability. 


EMF reader serves the purpose of detecting electromagnetic fields (EMF) in its vicinity. These fields are emitted by electrical appliances and wiring, making an EMF reader a versatile tool for diagnosis and similar applications. The list above introduces some of the finest EMF readers, accompanied by comprehensive explanations of their essential features and specifications. For a more informed choice, consider the following ideal picks among the best EMF readers:

  • If you’re looking for a durable EMF reader for long-term use, the Kydely EMF Reader is an excellent choice, boasting the added benefit of a lifetime warranty. This entry-level device offers an EMF range of 0 to 20 mG, coupled with a frequency range spanning from 50 Hz to 20 kHz.
  • For those seeking an EMF reader with an extensive frequency range, the GQ EMF-390 EMF Reader reader is worth considering. With a frequency range extending from 0 Hz to 400 kHz and an EMF range of 0 to 500 mG, this premium device is designed for heavy-duty usage and comes with a standard 1-year warranty.
  • The KII EMF Reader is ideal for those delving into paranormal investigations, ghost hunting, or anyone intrigued by unexplained occurrences. Additionally, it’s a practical choice for individuals seeking a straightforward and dependable EMF detector for everyday use.

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