2026年 April

10 Best 電磁波測定器 in 日本

Last Updated - 02/04/2026

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Best Choice
01

GQ

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【Domestic Genuine Product】GQ EMF Meter, Electromagnetic Wave Measurement Device EMF-390 Multifield 3 in 1 EMF ELF RF Meter with Data Storage Capability, 2.5Ghz Spectrum Analyzer, Compatible with 5G
9.8

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

✅【Simultaneously displays three types: electromagnetic waves, electric fields, and electromagnetic fields】The EMF-390 is an electromagnetic wave meter that can simultaneously measure three types of waves: high-frequency electromagnetic waves (microwaves), electric fields (electric fields), and electromagnetic fields (magnetic fields), all in one device With the All-In-One Display Mode, which is not found in general electromagnetic wave meters, you can check three measurements simultaneously on one screen
✅【Made in the leading country for electromagnetic wave countermeasures, the USA】The EMF-390 is a high-precision, high-performance electromagnetic wave meter (EMF meter) developed by the American company GQ Electronics, which handles cutting-edge electronic protection equipment From measuring common electromagnetic waves in households to specialized fields and research purposes, it can be widely used
✅【For various electromagnetic wave measurements】You can use it for various electromagnetic wave measurements, from everyday electromagnetic waves such as mobile phones, smartphones, and microwaves, to outdoor power lines, high-voltage lines, 5G base stations, and facilities such as factories and research institutes, both indoors and outdoors
✅【Data Logging and Storage】The EMF-390 is equipped with a flash memory for data logging and storage, which is not commonly found in general electromagnetic wave meters Free software supports download in csv format and can be used for continuous monitoring of electromagnetic waves or acquiring data in professional fields
✅【Battery-powered and USB rechargeable】A distinctive feature of the EMF-390 is that it can also be charged using a USB cable No need to replace batteries or worry about running costs, you can use it continuously A USB cable is also included
Japanese Manual: You can download the Japanese manual, simple manual, and glossary From a simple manual and glossary for those who are using an electromagnetic wave meter for the first time, to detailed manuals that are also ideal for use in specialized fields, all are in Japanese so anyone can use them with confidence

￥29,800
02

BOSEAN

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Bosean Electromagnetic Wave Measuring Instrument, High Frequency, Electric Field, Easy to Read, Instant Measurement, Easy to Operate, Lightweight, Easy to Carry, Rechargeable, Alarm Function, 3-Axis
9.7

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

Easy to Operate: Simple one-touch operation, even beginners can use it without hesitation. Comes with a Japanese instruction manual so you can start using it right away. In addition, we offer a 24-month long warranty and professional customer support, so you can rest assured that you will have peace of mind after purchase
3-in-1 Multi-Function Detection & 3-Axis High Precision Sensor: This single unit provides all-round protection from all types of electromagnetic waves. Measure electrical field (EF), magnetic field (MF) and high frequency (RF) simultaneously with high precision. Securely covers all types of everyday electromagnetic waves, from household appliances and wiring to Wi-Fi and 5G. Equipped with a professional 3-axis omnidirectional sensor that instantly accurately measures the entire space without worrying about the orientation
(Visible, Sound and Light Safety Alarm) The 2.4-inch TFT color LCD makes the measurement data clear at a glance. The real-time values, maximum values, and average values are displayed simultaneously, and the folding line graph allows you to understand the changes in real time. When the standard value is exceeded, it will notify you with sound and light (can be cancelled), so you can immediately get away from dangerous environments and remain safe
(Type-C Rechargeable & Easy to Carry) Say goodbye to troublesome battery replacements. Built-in rechargeable battery, Type-C compatible, eco-friendly and economical. Battery status is always monitored to notify you when the battery is low. The lightweight and compact design fits comfortably in your hand and fits easily in your bag, so you can take it out and start measuring right away
(Suitable for All Occasions & Reliable Protection) Can be used in any location, whether indoors or outdoors. It can measure electromagnetic wave levels in your home, office, machine room, or communication bases, and identify the source of exceeding standards and support countermeasures. It can also measure electromagnetic waves from your household appliances, such as smartphones, Wi-Fi routers, microwaves, etc. We provide reliable data to protect your family's health and work environment
(Important points when using) For more accurate measurements, please keep it in your hand when using. This machine is designed and adjusted based on the assumption of a handheld. Keep your posture stable when approaching the object of measurement. Avoid sudden movements. The trick is to slow wait for the reaction time of the device to get the correct number

￥7,999
Best Value
03

ERICKHILL

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ERICKHILL EMF Meter, Electromagnetic Wave | Electromagnetic Field Radiation Tester, Rechargeable Handheld LCD with Alarm Function for Home Inspection
9.6

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

【Wide range of uses】Electromagnetic radiation monitoring (residential and apartment, office, outdoor and industrial sites), electromagnetic radiation testing (radiation testing of mobile phones, computers, televisions, refrigerators, and high-voltage cables), radiation protection product testing (radiation protection effect testing), clothing, radiation-resistant film, and other radiation prevention products
【Easy to operate】It is mini and lightweight, so it is easy to carry and allows for on-site measurement Furthermore, we have done the instructions on the buttons, so even amateurs can easily measure them Press the power button briefly to turn on. The full screen will be displayed for approximately 1 second, followed by the current electric field and magnetic field measurements Note: Due to environmental electromagnetic interference, the meter may display a slight reading value when turned on, but this is not related to any fault with the meter
[With Alarm Sound] The sound light alarm will automatically alarm when the test result exceeds the safe value You can also mute it if you do not like the sound
[Uses] Weight: 0.56 lbs (0.255 kg) Simultaneously measures electric field and magnetic field strength Measures radiation from devices such as TVs, PCs, computers, microwaves, game consoles, rice cookers, refrigerators, electrical appliances, and electrical wires
This is a multifunctional EMF tester that has two uses: simultaneously measuring electric field and magnetic field radiation Maximum and average values, along with data hold and LCD, make the numbers easy to read [With Alarm Sound] The sound light alarm will automatically alarm when the test result exceeds the safe value You can also mute it if you do not like the sound

￥3,999 ￥4,399
04

ERICKHILL

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ERICKHILL Electromagnetic Wave Meter, 3-in-1 Electromagnetic Wave Measuring Instrument, EF/MF/RF Meter, Electromagnetic Field Radiation, Rechargeable, Digital/Graph, Switchable Electrical Field
9.4

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

【Multi-functional】Reading the average value or peak value (maximum value), data hold is very convenient for recording and checking Pressing the "GRAPH" button briefly allows you to switch the LCD screen to white or black Hold down the "GRAPH" button to switch between two display modes, allowing you to grasp the changes in numbers The power will automatically turn off if not operated for 15 minutes
【Get Contents】1 x ER02 EMF Meter, 1 x Instruction Manual, 1 x Charging Cable We offer a 36-month quality guarantee If you have any questions, please feel free to contact us
【Accurate Measurement】Weight: 0.3 kg Built with an electromagnetic wave sensor, the data is processed by a microchip and then displayed as a number on the LCD screen Measures magnetic field radiation selectively in units of mG / µT, electric field in units of V/m, and radiated fields in units of mW/m² Note: A measurement distance of 0 to 60 centimeters from the object being measured is optimal Measurement is possible beyond this range, but data errors may occur
Usage scenarios: The RF function can detect 5G signals and radio waves up to 10GHz EF and MF functions can measure electromagnetic waves emitted from home appliances such as TVs, home IH cookers, rice cookers, refrigerators, computers, and electrical wires Please note: The sensor for RF measurement is located on the right side of the main unit, and the sensors for EF and MF measurement are located on the top side Covering with hands can affect the measurement results, so please avoid it at all costs
Sound and Screen Alarm: When the measurement value exceeds the set value of 0.4μT (4mG), 40V/m, 1mW/m², the buzzer will continue to sound When using in crowded places, you can close the buzzer before using it to avoid disturbing others

￥7,899
05

FieldNew

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FieldNew 5 in 1 Electromagnetic Wave Measuring Device (High Frequency/Electric Field/Magnetic Field/Temperature and Humidity), High Definition VA Display, Type-C Charging, 3-Axis Sensor, Japanese
9.2

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

High Definition VA Display: High definition VA display with good visibility, making it easy to read even in dark rooms. The large 3.3 inch size makes it easy to understand with large numbers and temperature and humidity simultaneously. In addition, it comes with a color meter so you can intuitively know the size of your measurements
Easy to operate. The A4 double-sided color instruction manual is included so anyone can operate it easily. Recommended for beginners. Also, the video also provides measurement instructions for a more visual understanding
Adopts 3-Axis Sensor: 1. Omnidirectional measurement: The electromagnetic waves are measured simultaneously in each axis direction, and calculates the overall strength. 2. High Precision: Compared to a single axis measuring instrument, it can accurately evaluate the overall electromagnetic wave strength, increasing the accuracy of measurement. ③ Easy to use: There is less need to adjust the orientation of the measuring instrument, making it quick and easy
5 in 1 Electromagnetic Wave Tester: You can "know" 5 items, so you can see the electromagnetic wave environment around you. 1. Measure high frequency to see the electromagnetic wave of smart appliances equipped with Wi-Fi router, 5G compatible smartphones, cell phones, and Bluetooth. 2. Electric field/3. The magnetic field also allows you to see electromagnetic waves of electrical appliances such as TVs and refrigerators. In addition, 4. 5. We recommend that you understand the temperature and humidity of the room to make a better understanding of the environment
(Rechargeable for a long time) The built-in 1,000 mAh battery allows you to continue using it for a long time without having to replace the batteries. USB Type-C charging makes it versatile and easy to use
(1 year replacement warranty) If the product is defective within 1 year after your order, we will replace it with a new product regardless of the first or after use. In addition, if you have any questions regarding product defects or how it is used, we will respond quickly by our professional technical staff

￥7,280
06

Ujhosld

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Ujhosld EMF Meter, Digital Electromagnetic Field Detector with Alarm Function, Type-C Charging Compatible, Home Use
9.1

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

【Visual and Audible Alarm】The sound-light alarm automatically emits an alarm when the test results exceed the safe value, notifying you of strong electromagnetic wave zones with visual and light alarms
【USB Rechargeable & Quality Assurance】Convenient USB rechargeable, can be powered by mobile battery or PC, making it easy to carry Once the product arrives, please charge it first before using it We offer a 12-month quality guarantee. If you receive the product and encounter any malfunctions or issues during use, please feel free to contact us If a defect occurs in the product during use within the warranty period, we will provide a free exchange or refund
【Easy to read】Equipped with a large screen display, it offers excellent visibility even in dark places, fully meeting the needs for a simple inspection
【Easy to operate】There is less need to adjust the orientation of the measuring instrument, allowing for quick and easy measurement, immediate results, and easy identification of areas with strong electromagnetic waves
Electromagnetic Wave Meter: Measures electrical and magnetic field strength at the same time, electrical field (EF) and magnetic field (MF) Measures electromagnetic waves generated from electric fields (EF) electronic devices and power lines For example, microwave ovens, refrigerators, electrical wires, etc Magnetic Field (MF): Measures magnetic fields from household appliances and motors Detects magnetic fields emitted by refrigerators, microwaves, and electrical appliances Features functions such as data hold

￥2,799
07

RDINSCOS

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EMF Meter Digital Electromagnetic Field Radiation Detector,Electromagnetic Wave Meter Electromagnetic Wave Meter EMF Meter: 3-in-1 Portable Electromagnetic Field Radiation Detector for EF, RF, MF and
9.0

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

Quiet function: The equipment is silent, preventing the fear of the ghost. Or when you are testing a quiet area, you can keep the buzzer closed to avoid disturbing other areas
Luminous Screen: Designed with 3 LCD screen that can help you find ghosts in the dark
Easy to use: One hand operation, move or field measurement (need to squeeze the electromagnetic anometer table to test)
Detects all 3 types of electromagnetic wave measurement: EMF measuring instruments can detect 3 kinds of electromagnetic radiation: electromagnetic field (EF), magnetic field (MF), and radio frequency field (RF)
Auto Sound and Tri-Color Alarm: Tri-color LCD turns green, yellow and red, auto alarm trigger higher than safety value (250 V/m or 5 uT/50 mG or 50 mW/㎡)
Auto Shutdown: Automatic shutdown after 5 minutes without operation

￥3,899
08

FieldNew

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FieldNew 4-in-1 Electromagnetic Wave Meter (Electric/Magnetic Field/Temperature/Humidity), High Definition VA Display, Type-C Charging, 3-Axis Sensor, Japanese Instruction Manual (English Language Not
8.9

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

Rechargeable for a Long Time: Built-in 1000 mAh battery, so you can continue using it for a long time without replacing the battery. This electromagnetic wave meter is versatile and easy to use with USB Type-C charging
Not compatible with high frequencies: It does not support high frequency (RF). It cannot measure electromagnetic waves from Wi-Fi routers, 5G compatible smartphones, cell phones, and smart devices equipped with Bluetooth. Please consider FieldNew 5 in 1 electromagnetic wave measuring device
If the product is defective within one year after placing your order, we will replace it with a new product regardless of the initial or after use. In addition, if you have any doubts about the product or how to use it, our professional staff will quickly respond to the official LINE
High Definition VA Display: High definition VA display with good visibility, bright and easy to read even in dark rooms. The large 3.3 inch size makes it easy to read with the large number and temperature and humidity. It also comes with a color meter so you can intuitively understand the size of your measured values
Easy to Operate Even for Beginners: Comes with an A4 double-sided color manual (English language not guaranteed) so anyone can operate it easily. Recommended for beginners. Also, the video also demonstrates the measurement process, so you can understand more visually
4-in-1 Electromagnetic Wave Meter: This single unit can simultaneously measure 4 items of electric field, magnetic field, temperature and humidity. You can visualize the state of electromagnetic waves emitted by your household appliances such as TVs and refrigerators. In addition, it can also check the temperature and humidity, so it is recommended for those who want to have a comprehensive check of the indoor environment. Uses a 3-axis sensor that allows you to measure all directions of electromagnetic waves in real time, so you can get more accurate and data close to the real environment
(Utilizes 3-Axis Sensor) (Omnidirectional measurement) Measures electromagnetic waves in each axial direction simultaneously and calculates the overall strength. High Precision: Compared to a single axis measuring instrument, the total electromagnetic wave strength can be accurately evaluated so the measurement accuracy is increased. (Easy to Use) There is no need to adjust the direction of the measuring instrument, so you can measure quickly and easily

￥5,280
09

TESMEN

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TESMEN EMF Meter, Hound-200 EMF Meter: EF, RF, MF, WiFi Signal 3-in-1 Portable Detector for Home and Outdoor EMF Inspection and Ghost Hunting – Green
8.8

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

Visual and Audible Alarm: The TESMEN radiation detector features a 3-color backlit display and an audible alarm (can be turned off) Numerical display and trend graph provide a clear understanding of current field strength data Furthermore, the strength and frequency of the audible alarm changes according to the measurement value
MULTIPLE APPLICATIONS: RF mode can detect the microwave emitted by household appliances such as WiFi signal, 5G signal (below 3.5GHz), microwave ovens, etc ELEC Mode and MAG Mode can measure electromagnetic waves emitted from home appliances such as TVs, IH cookers, rice cookers, refrigerators, computers, and power transmission lines It can also help with room layout, avoiding exposure to high radiation environments
Includes: Hound-200 EMF Meter (1 piece), AAA batteries (3 pieces), storage case (1 piece), instruction manual (1 piece)
Ease of Use: The Hound-200 EMF Meter is designed for your convenience Features such as MAX measurement, peak measurement, and data hold allow you to comprehensively grasp the electric field strength values The 2.26" LCD screen is easy to read and comes with an automatic shutdown and low battery indicator to save energy
3-in-1 Multi-Function Detection: When using the TESMEN electromagnetic wave meter you can detect the intensity of electric field (EF), magnetic field (MF), and high frequency (RF) respectively Because it has a built-in electromagnetic radiation sensor, it detects accurate electromagnetic fields Whether at home, outdoors, or for ghost hunting, the Hound-200 electromagnetic wave meter is a reliable tool for field detection

￥5,399
10

xuuyuu

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EMF Electromagnetic Wave Tester, 5 Hz-3500 Hz, Reliable Measurement, 3 Functions Radiation Measuring Instrument, Electromagnetic Field Measurement, High Sensitivity Measurement, Radiation Detection of
8.7

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

[Wide Testing Frequency] EMF measuring instrument test frequency is 5Hz-3500Hz, which meets the test needs of daily life. Dual mode measurement method
[Three threat functions] This electromagnetic wave meter can simultaneously detect 3 functions: electronic, magnetic field, and temperature. It is convenient and efficient
[Radiation Measurement for Household Appliances] Measure radiation from TV, induction cooker, rice cooker, refrigerator, computer, other appliances, electrical wires, etc
[Lightweight ABS Material] The electromagnetic wave measuring device is lightweight and easy to carry. Stable use
[Health Care] There are many radiation sources in daily life, such as range hood, fan, air conditioner, etc. Considering the health of your family, this electromagnetic wave meter will help you stay away from radiation

￥2,790

10 Best 電磁波測定器 in 日本

【Domestic Genuine Product】GQ EMF Meter, Electromagnetic Wave Measurement Device EMF-390 Multifield 3 in 1 EMF ELF RF Meter with Data Storage Capability, 2.5Ghz Spectrum Analyzer, Compatible with 5G

Bosean Electromagnetic Wave Measuring Instrument, High Frequency, Electric Field, Easy to Read, Instant Measurement, Easy to Operate, Lightweight, Easy to Carry, Rechargeable, Alarm Function, 3-Axis

ERICKHILL EMF Meter, Electromagnetic Wave | Electromagnetic Field Radiation Tester, Rechargeable Handheld LCD with Alarm Function for Home Inspection

ERICKHILL Electromagnetic Wave Meter, 3-in-1 Electromagnetic Wave Measuring Instrument, EF/MF/RF Meter, Electromagnetic Field Radiation, Rechargeable, Digital/Graph, Switchable Electrical Field

FieldNew 5 in 1 Electromagnetic Wave Measuring Device (High Frequency/Electric Field/Magnetic Field/Temperature and Humidity), High Definition VA Display, Type-C Charging, 3-Axis Sensor, Japanese

Ujhosld EMF Meter, Digital Electromagnetic Field Detector with Alarm Function, Type-C Charging Compatible, Home Use

EMF Meter Digital Electromagnetic Field Radiation Detector,Electromagnetic Wave Meter Electromagnetic Wave Meter EMF Meter: 3-in-1 Portable Electromagnetic Field Radiation Detector for EF, RF, MF and

FieldNew 4-in-1 Electromagnetic Wave Meter (Electric/Magnetic Field/Temperature/Humidity), High Definition VA Display, Type-C Charging, 3-Axis Sensor, Japanese Instruction Manual (English Language Not

TESMEN EMF Meter, Hound-200 EMF Meter: EF, RF, MF, WiFi Signal 3-in-1 Portable Detector for Home and Outdoor EMF Inspection and Ghost Hunting – Green

EMF Electromagnetic Wave Tester, 5 Hz-3500 Hz, Reliable Measurement, 3 Functions Radiation Measuring Instrument, Electromagnetic Field Measurement, High Sensitivity Measurement, Radiation Detection of

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