2025年 July

10 Best 電磁波測定器 in 日本

Last Updated - 20/07/2025

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Best Choice
01

GQ

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GQ Electromagnetic Wave Meter, EMF-390, Multi-field, 3 in 1 EMF, ELF RF Meter, Data Storage, 2.5 GHz Spectrum Analyzer, 5 G Network Compatible, Japanese Instruction Manual Included, USB Charging, Wide
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

Displays 3 Types of Electromagnetic Waves, Electromagnetic Fields simultaneously: The EMF-390 is an electromagnetic wave measuring device that can measure 3 types of waves (microwave), electrofield (electric field), and electromagnetic field (magnetic field). In the all-in-one display mode, you can check 3 measurements at the same time on one screen instead of a typical electromagnetic wave meter
Data Logging and Storage: The EMF-390 is equipped with flash memory for data logging and storage. Free software supports download in csv format and can be used for continuous monitoring of electromagnetic waves and obtaining data in professional fields
Battery Operated, USB Rechargeable: The unique feature of the EMF-390 is that it can be charged with a USB cable. No need to worry about replacing batteries or running costs, so you can continue to use it continuously. USB cable is also included
(Various electromagnetic wave measurements) Can be used for various electromagnetic wave measurements both indoors and outdoors, from nearby electromagnetic waves such as mobile phones, smartphones, microwave ovens, and other facilities such as outdoor power lines, high pressure wires, 5G base stations, factories and laboratories
(Safe Japanese Manual) You can download Japanese manuals, simple manuals, and the Glossary (English language not guaranteed). From simple manuals and terminologies for those who are first using an electromagnetic wave meter to detailed manuals that are perfect for professional use, all in Japanese, so anyone can use it with confidence
(Made in the U.S.A. in Advanced Countries for EMF) EMF-390 is an electromagnetic wave meter (electromagnetic wavemeter) developed by GQ Electronics, a company that handles the most advanced electronic protection equipment. It can be used for a wide range of applications, from measurements of electromagnetic waves in general homes to use in specialty and research purposes

￥29,800
02

Trifield Meter

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[2018 Model] Electromagnetic Wave Measuring Instrument, Tri-Field Meter, TF2, 50 Hz/60 Hz, Trifield Meter, World's No.1 Gaussmeter
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

This model is a shared model that is 50 Hz (East Japan) / 60 Hz (West Japan)
The most standard electromagnetic wave measuring instrument with the #1 spread rate across the world as well as in Japan
Digital display and peak retention function help identify electromagnetic source
Built-in 3-axis sensor measures electromagnetic waves in 3 types (electric field, magnetic field, and microwave) that are present in your living environment

￥29,580
Best Value
03

ERICKHILL

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ERICKHILL Electromagnetic Wave Meter, Electromagnetic Radiation, Tester, EMF Meter, Rechargeable, Handheld LCD Alarm Function, For Home Use and 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

[Widely Used] Electromagnetic radiation monitoring (residential and apartment, office, outdoor and industrial applications), electromagnetic radiation testing (radiation testing for cell phones, computers, televisions, refrigerators, and high voltage cables), radiation protection product testing (radiation protection effect test), clothing, anti-radiation film, and other anti-radiation products
[Multi-function] EMF tester has two uses for measuring electric field and magnetic field radiation at the same time. The maximum and average value and data hold and LCD make it easy to read. [Alarm] The sound light alarm will automatically alarm when the test results exceed the safe value. You can mute it if you don't like sound
[Easy to Operate] Mini and lightweight, so it is easy to carry and can be used for field measurements. The buttons have been carefully described, so amateurs can easily measure them. Short press the power button to turn on, the full screen will display about 1 second, then the current measurement of the electrical and magnetic field. Note: Due to the electromagnetic interference of the environment, the measuring instrument may show slight readings when turned on, but this is not affected by the measuring instrument
[Application] Weight: 0.255kg It measures electrical field and magnetic field strength at the same time. Measure radiation from TV, PC, computer, microwave, game machine rice cooker, refrigerator, electric appliance, electric wire, etc
[Alarm] The sound light alarm will automatically alarm when the test results exceed the safe value. You can mute it if you don't like sound

￥3,999 ￥4,399
04

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
9.4

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

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

￥6,980
05

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
9.3

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
06

TENMARS

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TENMARS TM-190 Electromagnetic Wave Measuring Device
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

Size and Weight: 4.5 inches (115 mm) H x 2.4 inches (60 mm) W x 0.8 inches (21 mm) D x Approx. 4.2 oz (120 g) (including batteries)
Resolution: Electromagnetic Wave: 0.01 / 0.1 / 1 mG or 0.01 / 0.1 / 1μT Electric Field: 1 V / m High Frequency: 0.01 μW / m2, 0.1 μA / m, 0.1 mV / m, 0.001 μW / cm2, 1 dB
Power supply: 3 x 1.5V AAA batteries; Battery life: Approximately 8 hours
Operating Humidity: 80% RH or less; Accessories: Operation Manual, 3 x 1.5V batteries
Operating Environment Temperature: 11 - 104°F (5 - 40°C)
Measurement interval: 6 seconds
Measurement Range: Electromagnetic Wave: 0.03 - 2000 mG; Electric Field: 50 V/m to 2000 V/m High Frequency: 0.02 μW / m2 - 554 mW / m2
Functions/Display: Electromagnetic wave XYZ 3-axis type, measurement unit change, good / normal / warning display function, electronic sound alarm with warning value, language display
Detection frequency: Electromagnetic wave: 50/60 Hz Electric field: 50/60 Hz High frequency: 50 MHz to 3.5 GHz
Accuracy: Electromagnetic Wave: ± (15% + 100 dgt) Electric Field: ± (7% + 50 dgt) High Frequency: 2 dB / 2.45 GHz

￥20,800
07

Ujhosld

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UJHOSLD Electromagnetic Wave Meter, EMF Meter, Digital Electromagnetic Field Radiation Detector, Alarm Function, Type-C Charging, 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 a safe value, and alerts a strong electromagnetic wave zone with visual and light alarms
USB Rechargeable & Quality Assurance: The convenient USB rechargeable power can be removed from a mobile battery or PC, making it convenient to carry. Please use it after first charging the product. We offer a 12-month quality assurance. If you receive the product or have any problems during use, please feel free to contact us. If the product is defective due to use within the warranty period, we will provide free replacement and refund
Electromagnetic Wave Tester: Measures both electrical and magnetic field strength at the same time. Electric field (EF), magnetic field (MF). Measures electromagnetic waves generated from electrical field (EF) electronics and power lines. For example, microwave, refrigerator, electric wire, etc. Magnetic Field (MF): Measure the magnetic field from household appliances and motors. Detects magnetic fields emitted by refrigerators, microwaves, and appliances Features include data hold and other functions
Easy to Read: The large screen display provides excellent visibility even in dark places, and is sufficiently suited for simple inspection
Easy to Operate: There is no need to adjust the orientation of the measuring instrument, and it is quick and easy to measure, so you can easily identify areas with strong electromagnetic waves

￥2,599
08

TESMEN

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TESMEN EMF Measuring Instrument, HOUND-200 EMF Meter: 3-in-1 Portable Electromagnetic Radiation Detector for EF, RF, MF and WiFi Signals for Home and Outdoor EMF Inspection and Ghost Hunting - Green
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

Visual & Audible Alarm: The TESMEN radiation detector features 3 color backlight display and audible alarm (off). Numerical display and trend graphs allow you to clearly understand current electrical strength data. In addition, the intensity and frequency of the audible alarm changes according to the measurements
Versatile: RF mode can detect the microwave emitted by appliances such as microwave and microwave ovens, 5G signals (under 3.5GHz). ELEC mode and MAG mode can measure electromagnetic waves emitted by appliances such as TVs, induction cookers, rice cookers, refrigerators, computers, electric wires, etc. Also useful for room layout and avoid sitting in high radiation environment
Included contents: Hound-200 electromagnetic wave measuring device (1), AAA batteries (3), storage case (1), instruction manual (1)
EASY TO USE: Hound-200 EMF measuring instruments are designed with your convenience in mind. With features such as MAX measurements, peak measurements, and data hold, you can understand the comprehensive value of field strength. The 2.26 inch LCD screen is easy to read information and comes with auto shutdown and low battery indicator to save energy
3-in-1 Multi-Function Detection: When using the TESMEN electromagnetic wave meter, it can detect the strength of electromagnetic field (EF), magnetic field (MF), and high frequency (RF). Built-in electromagnetic radiation sensor detects accurate electromagnetic fields. Whether you're at home, outdoors, or ghost hunting, the Hound-200 EMF Meter is a reliable tool for field detection

￥4,699
09

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
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

Why use EMF detectors: measure electromagnetic field, identify equipment that causes high levels of radiation, and help users make wise decisions. It is suitable for household use and outdoor activities such as radiation applications
Upgraded Functionality: In EF mode, it can detect the three kinds of radio frequency radiation which displays AC frequencies (50 Hz/60 Hz) in MF mode, X/Y/Z tri-axis magnetic field radiation. (RF):WIFI/Phone, Microwave, Mixing These devices are switchable
USER-FRIENDLY: RD 637 generic power tester is easy to operate and convenient. Charging function and charging cable included. In addition, in APO mode, the device will automatically turn off after 15 minutes inactive, extending the battery life
EMF Reader: The large backlit LCD screen can clearly display your measurements Test average or peak values (max) and store data on HOLD for display
Double Alarm: When the EMF measurement exceeds (250 V/m or 5μT/50 mG or 50 mW/m²), this device will alarm and turn red screen. Buzzer can be closed
Detects all three types of EMF: EMF measuring instruments can detect 3 kinds of electromagnetic radiations: electromagnetic field (EF), magnetic field (MF), and radio frequency field (RF)

￥4,539
10

FNIRSI

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FNIRSI ERD-10 4-in-1 Electromagnetic Wave Measuring Instrument, Electric Field (EF), Magnetic Field (GF), High Frequency Electromagnetic Wave (RF), Temperature Curve Display, 2.4 Inch High Definition
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

【Comfortable Display for Any Environment】 2.4 inch full color screen allows you to display your measurements bright and clearly. Both dark and light modes have two display modes, and the backlight brightness can be adjusted, making it comfortable for both indoor and outdoor use
Rechargeable, Convenient to Carry: The built-in 1,000 mAh rechargeable battery allows you to easily charge it with a Type-C port. The lightweight design is easy to carry, and it is suitable for measuring electromagnetic waves indoors as well as in cars and outdoors
Japanese Instruction Manual: PDF instruction manual is supported. Scroll down the product detail page (this page) and click on the blue letter "User Guide (PDF)" located in the "Safety and Product Resources" section to download the instruction manual (English language not guaranteed)
High Precision Measurement: The ERD-10 is a multi-functional electromagnetic wave meter that can measure 4 items at the same time, including electrical field (EF), magnetic field (MF), high-frequency RF, and environmental temperature. The electrical field can be measured at high resolution of 1V/m and the magnetic field is 0.01µT. Easily and accurately detect electromagnetic waves in daily life, such as appliances and Wi-Fi routers
Convenient Features: The HOLD function allows you to temporarily hold your measurement data, making it convenient for recording and comparison. When the threshold value (electric field: 40V/m, magnetic field: 0.4μT), it will emit a warning with three kinds of sounds (sound, display, lighting). You can also customize the upper limit and measurement settings
(Visual View) In addition to the digital display mode with large characters, the real-time waveform is updated every 0.5 seconds and is equipped with a "curve display function" that allows you to see changes in electromagnetic waves. You can see the trend of fluctuations at a glance as well as the numerical trends

￥7,899

10 Best 電磁波測定器 in 日本

GQ Electromagnetic Wave Meter, EMF-390, Multi-field, 3 in 1 EMF, ELF RF Meter, Data Storage, 2.5 GHz Spectrum Analyzer, 5 G Network Compatible, Japanese Instruction Manual Included, USB Charging, Wide

[2018 Model] Electromagnetic Wave Measuring Instrument, Tri-Field Meter, TF2, 50 Hz/60 Hz, Trifield Meter, World's No.1 Gaussmeter

ERICKHILL Electromagnetic Wave Meter, Electromagnetic Radiation, Tester, EMF Meter, Rechargeable, Handheld LCD Alarm Function, For Home Use and Inspection

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

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

TENMARS TM-190 Electromagnetic Wave Measuring Device

UJHOSLD Electromagnetic Wave Meter, EMF Meter, Digital Electromagnetic Field Radiation Detector, Alarm Function, Type-C Charging, Home Use

TESMEN EMF Measuring Instrument, HOUND-200 EMF Meter: 3-in-1 Portable Electromagnetic Radiation Detector for EF, RF, MF and WiFi Signals for Home and Outdoor EMF Inspection and Ghost Hunting - Green

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

FNIRSI ERD-10 4-in-1 Electromagnetic Wave Measuring Instrument, Electric Field (EF), Magnetic Field (GF), High Frequency Electromagnetic Wave (RF), Temperature Curve Display, 2.4 Inch High Definition

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