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EMF Meter, Advanced GQ EMF-390 Multi-Field Electromagnetic Radiation Detector 3-in-1 EMF ELF Meter & RF Spectrum Analyzer, Cell Tower Smartmeter Signal Detector RF up to 10G Data Logger

Brand: GQ

2,995 ratings

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Purchase options and add-ons

Brand	GQ
Power source	Corded Electric
Item weight	10 Ounces
Maximum range	10 Metres
Battery description	Lithium-Ion

About this item

Multiple high sensitivity sensors installed for detecting Power line, Smart meter, Cell phone, Microwave etc.
Identify/recognize the common possible sources, such as Power line, Cell Tower, Microwave, Static etc.
Safety suggestion lets you understand current situation instantly.
RF up to 10Ghz and EMF up to 400Khz
Built-in RF Spectrum analyzer and GQ RF Browser for real time RF monitoring.

› See more product details

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This item: EMF Meter, Advanced GQ EMF-390 Multi-Field Electromagnetic Radiation Detector 3-in-1 EMF ELF Meter & RF Spectrum Analyzer, Cell Tower Smartmeter Signal Detector RF up to 10G Data Logger

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Radiation Nation: Fallout of Modern Technology - Your Complete Guide to EMF Protection & Safety: The Proven Health Risks of Electromagnetic Radiation ... Your Complete Guide to Emf Radiation Safety

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Product Description

The GQ EMF-390 advanced multi-function digital EMF ELF meter (Patent pending) is designed and developed by GQ Electronics, Seattle, USA. It is a portable and convenient device. It can be used in general purpose test, detection and other scientific applications. Such as Power Line, WiFi, Cell phone, Cell tower, Microwave, Smart Meter, etc. The device integrated features include three axis Electromagnetic Fields, Electric Field, Radio Frequency (up to 10Ghz) and a bonus feature RF Spectrum Power Analyzer(six bands up to 2.504Ghz).
The meter is able to identify/recognize the common source from EMF/RF measured, such as Power Line, WiFi/Cell phone, Cell tower, Microwave etc. It also comes with built-in audible and visual alarm. It can be used for EMF, ELF, EF, RF detection and monitoring both indoor and outdoor, as well as in other similar environments.
The EMF-390 has built-in flash memory for data logging, it can log the real-time data every second with timestamp. The history data can be be downloaded when the device linked to a PC. The free PC software can be downloaded from website.
The unique GQ RF Browser feature visualizes the RF radiation precisely on screen. With RF Browser, user is able to see high speed RF signal, such as Smart meter, cell phone transmission, estimates Digital RF transmission data in bytes and RF power spectral histogram.
The meter has installed multiple sensors to ensure maximum scale/range measurement and highest accuracy. .
With open communication protocol, user is able to send commands to the unit to get all data remotely. This let the device be easier to integrate to any other system,
The device is equipped with a USB port, utilized for communication and external power supply/charging of internal rechargeable Li-Ion 3.7V battery.
GQ EMF meter is all you need to detect EMF, ELF, EF and RF radiation

Specification

EMF (Electromagnetic Field) Triple axis (X, Y, Z) Range: 0.0~500mG, 0.0 to 50µT, Resolution: 0. 1mG

EF (Electric Field): 0V/m to 1000V/m, Resolution: 1 V/m

RF (Radio Frequency Field) Range: 0.02µW/m² ~ 9999mW/m², Resolution: 0.01μW / m², 1pW/cm ², 1dB, up to 10GHz.

5 bands RF Spectrum Analyzer.

New display maximizes the amount of information

All-in-One display lets you see reading from all sensors at once.
Advanced features and multi-sensors to ensure best detection from EMF, EF and RF.
Compact design for easy testing and measurement.
Safety suggestion lets you understand current situation instantly.
Radiation source recognition provide fastest way to find out the radiation source.

Classic display option is quick to adapt application

With traditional analog style display, the data becomes even easier and faster to understand.
Left and right vertical bars are also indications of the EF and EMF radiation level in glance.
Safety suggestion in large font for easier reading.
Real Time clock displays current time for time sensitive testing.
Front LED visualizes alarm when triggered.

Enriched features support enriched applications

Real-Time EMF EF Graph

Presents exact changes of EMF and EF radiation level been detected in past 45 seconds.
The right side of graph shows a reading for both EMF and EF.

RF Spectrum Analyzer

Advanced users are able to use built-in RF Spectrum Analyzer to discover the RF signal power in a specific frequency.
This graph shows two RF signal that has been detected at same time: Microwave oven and WiFi signal.

RF Browser

GQ RF Browser is a unique feature of GQ EMF detector. The real-time graph is based on high sensitivity sensors.
This graph shows a close by cell phone that just received a text message.

Real-Time Power Distribution Histogram

RF power distribution is another important factor to let us understand how the RF radiation power distributed during the period.
This graph shows the highest RF power is 6.47% of total at 0.049 milliWatts per square meter during the testing period.

Unlimited Applications

Detecting EMF, ELF, EF, RF from all electronics devices but not limited to.
EMF-390 can do more than what you see here. It is not only a tool, but also a teacher. User will learn and discover invisible world from it.

From the brand

GQ Electronics LLC is a registered technological company based in Seattle, WA. USA. Since 2010.

GQ has been developing cutting edge electronic protection instruments that protect people from harmful invisible threats including radiation.

The product lines of GQ encompasses embedded development tools, Geiger counter nuclear radiation detectors, EMF RF EF radiation detector, social distance reminder, etc. GQ has always been striving for the best products, service, quality, support for customers as GQ is continually developing and innovating.
About GQ
GQ's New Geiger Counter Series
Advanced GQ Products
GQ Programmer
What makes our products unique?

GQ is working with university researchers and other USA companies to customize designs and develop new tools for enterprises, like Boeing.

The products are designed, developed, assembled, quality tested, supported, and serviced at Seattle USA.

How extensive is the company's operations?

GQ is an Amazon vendor and has a network of over 50 global distributors worldwide.

GQ has over 200,000 customers worldwide. The customers include US Department of State, USA universities, high schools, museums, global universities, companies, and individual users.
Best Seller: EMF-390 EMF Meter
Best Seller: GQ GMC-500 Plus

Product information

Technical Details

Manufacturer	‎GQ Electronics LLC
Part Number	‎EMF-390
Product Dimensions	‎13.97 x 7.62 x 2.54 cm; 283.5 g
Batteries	‎1 LR44 batteries required.
Item model number	‎EMF-390
Power Source	‎Corded Electric
Item Package Quantity	‎1
Batteries included?	‎No
Batteries Required?	‎No
Battery Cell Type	‎Lithium Ion
Battery description	‎Lithium-Ion
Item Weight	‎283 g

Additional Information

ASIN	B07JGJ897T
Customer Reviews	2,995 ratings 4.5 out of 5 stars
Best Sellers Rank	17,334 in DIY & Tools (See Top 100 in DIY & Tools) 1 in Spectrum Analysers 144 in Scanners & Testers
Delivery information:	We cannot deliver certain products outside mainland UK ( Details). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout.
Date First Available	30 Oct. 2018

Warranty & Support

Amazon.com Return Policy:Regardless of your statutory right of withdrawal, you enjoy a 30-day right of return for many products. For exceptions and conditions, see Return details.

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Safety and product resources

Safety documents

User Guide (PDF)

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Customer reviews

2,995 global ratings

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Customers say

Customers find the EMF meter functional and accurate, with reliable readings and good value for money. The device is easy to use and read, and customers appreciate its design. They like the display options, with one customer noting it shows all three values on one screen. Customers value the frequency measurement capabilities, with one review highlighting its ability to detect WiFi and smart meter signals.

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Functionality Accuracy Value for money Ease of use Frequency Ease of reading Design Display options

36 customers mention ‘Functionality’36 positive0 negative

Customers find that the EMF meter works as expected, with one customer specifically mentioning how it helped them appropriately use their phone.

"...is half the price of equivalent competitors and provides everything a budding home worker or concerned parent could possibly need...." Read more

"...Well worth to check your work place, resting place, bedroom etc. The price is reasonable comparing to functionality and other brands." Read more

"Excellent device BUT for some reason the EF reading jumps up to very high readings the moment I'm near it, touch it or hold it!!?..." Read more

"Great piece of kit and very informative and reassuring to have...." Read more

21 customers mention ‘Accuracy’18 positive3 negative

Customers find the EMF meter accurate and reliable, with good source measurement sensitivity and the ability to obtain usable measurements.

"...sensitive enough to be able to easily sense check that the meter readings are reliable (which they are with mine)...." Read more

"...Very well designed with German common sense and precision. Brilliant little device. Measures all you need to know in one go...." Read more

"Whilst not a professional level device it is perfect;y capable of obtaining useable measurements...." Read more

"I had my doubts but this works very well. Consistently gives accurate readings...." Read more

19 customers mention ‘Value for money’16 positive3 negative

Customers find the EMF meter to be good value for money.

"This meter is half the price of equivalent competitors and provides everything a budding home worker or concerned parent could possibly need...." Read more

"...The price is reasonable comparing to functionality and other brands." Read more

"...No problem really though, as the price is not that high and it does what I needed it for, which is checking if appliances and devices in the..." Read more

"I first borrowed my friends then decided to buy my own at this very good price...." Read more

16 customers mention ‘Ease of use’16 positive0 negative

Customers find the EMF meter easy to use.

"...Easy to use and sensitive enough to be able to easily sense check that the meter readings are reliable (which they are with mine)...." Read more

"...all three values on one screen or can change to just one; easy to use it to scope out a room or building and find the hotspots...." Read more

"...I love this EMF Detector because its so easy to use as I'm a woman and rubbish with gadgets but this is so easy...." Read more

"...it with and have no technical clue, but its easy to use and easy to understand. It has various modes but 3 in 1 seems best for me...." Read more

11 customers mention ‘Frequency’8 positive3 negative

Customers appreciate the EMF meter's frequency detection capabilities, with reviews highlighting its ability to measure RF signals from Wi-Fi and smart meters, as well as its effectiveness in detecting dangerous radio emissions.

"...The unit presents information on the radiating source (wifi, cell tower etc) which has proven to be useful and you can focus on certain bands of the..." Read more

"...give off more EF frequency / also surprising how the RF signals is transmitted in high pulses - up to 1000 mW/m2 then down to 0.001 every 12..." Read more

"...that sends it into alarm mode , ""ringing it's head off"" being a noise nuisance! Till its unplugged from the charge cable...." Read more

"Shows where all the hot spots are in the house for high electric fields such as light swiches, sockets, and electrical appliances...." Read more

8 customers mention ‘Ease of reading’8 positive0 negative

Customers find the EMF meter easy to read, with one customer noting its clear display and another mentioning its informative tool features.

"...Easy to use and sensitive enough to be able to easily sense check that the meter readings are reliable (which they are with mine)...." Read more

"...Measures all you need to know in one go. Tells you the summary in simple and smart way...." Read more

"A compact EMF meter, with many functions; easy to read; shows all three values on one screen or can change to just one; easy to use it to scope out..." Read more

"...3 modes and several settings are presented with differing information being able to be displayed...." Read more

6 customers mention ‘Design’6 positive0 negative

Customers appreciate the design of the EMF meter, with one mentioning its nice large clean screen.

"I received new item directly from manufacture. Very well designed with German common sense and precision. Brilliant little device...." Read more

"...Every house should have one of these well designed meters." Read more

"...manufacture support is accessible and helpful. a nice case, wrist strap and credit card references outlining good and bad levels of exposure is also..." Read more

"A very useful instrument, sensitive and well designed...." Read more

6 customers mention ‘Display options’6 positive0 negative

Customers appreciate the display options of the EMF meter, with one customer noting that it shows all three values on one screen and includes reference values for each measurement.

"A compact EMF meter, with many functions; easy to read; shows all three values on one screen or can change to just one; easy to use it to scope out..." Read more

"Well priced and multiple display options and seems more accurate than another I tried." Read more

"...device, clear instructuons, very useful card is included with reference values for each measurement." Read more

"...There are various modes that allow signals to be measured as a numerical display and for RF as a spectral response for detailed frequency analysis...." Read more

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Razz
Accurate and simple to use 3 in 1 (EMF/EF/RF) meter
Reviewed in the United Kingdom on 3 July 2020
Verified Purchase

This meter is half the price of equivalent competitors and provides everything a budding home worker or concerned parent could possibly need. Easy to use and sensitive enough to be able to easily sense check that the meter readings are reliable (which they are with mine). Super accurate in fact, especially when held correctly (as shown in small printed instructions). I wanted it to check my home office and particularly the electric / electromagnetic field fields and radio frequencies (aka WiFi exposure) at my desk & kitchen table (for home working under lock down). With some small changes was able to reduce our exposure to all forms of invisible radiation by more than 10 times. Also was able to see change in RF in real time as I used WiFi on my iPad. I already knew that you should not hold your iPad in your hands and use WiFi but the results were an eye opener. Needless to say my desktop computer is not connected by Ethernet cable and favoured (whenever possible) over the iPad. I have also move the modem (which is really harmful at short range, shit these things should come with a serious health warning!) as far from me as possible. This device is a God send and only after I had bought this meter did I watch 'Better Call Saul'. So glad I went for this meter and would recommend to anyone remotely concerned about their health with all the debate raging over 5G

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69 people found this helpful

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Rshe
It does work
Reviewed in the United Kingdom on 26 July 2024
Verified Purchase
I received new item directly from manufacture. Very well designed with German common sense and precision.
Brilliant little device. Measures all you need to know in one go. Tells you the summary in simple and smart way. I discovered things I've never suspected about home devices - the manufacturers don't tell you about.
Well worth to check your work place, resting place, bedroom etc.
The price is reasonable comparing to functionality and other brands.

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4 people found this helpful

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Miss Tara Acheson
EF not accurate due to response to our body
Reviewed in the United Kingdom on 1 April 2025
Verified Purchase
Excellent device BUT for some reason the EF reading jumps up to very high readings the moment I'm near it, touch it or hold it!!? I've read the instructions, hold it at the bottom where it's supposed to be held and keep it away from my body whilst holding it, but still it jumps up. How can I get an accurate RF reading if this keeps happening!?? I'm not sure whether to send back or does it need to be calibrated!? That being said its a great little detector with lots of great features.

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A buyer
A reassuring piece of kit to have and great for the price
Reviewed in the United Kingdom on 7 June 2023
Verified Purchase
Great piece of kit and very informative and reassuring to have. It seems to pretty much support the usual guidelines about not being too close to a router or mobile phone (and similar device) when it is active and connected if one goes by the limit settings of this device. The the thing that is perhaps surprising is that levels of EF (electrical field) seems to be the main aspect to focus on in my setting, meaning when using a device that is not battery powered but connected to the mains, or if it is connected to a device that is connected to the mains also, including a charging phone then the level goes over the limit, at least from what I found. This is something that people, in my opinion, tend to overlook.

Disclaimer: I am writing this for the benefit of anyone who cannot afford their own one at the moment, or who has one and is looking to compare results, these are simply the measurements that I took with this device which I bought from Amazon and they are not a recommendation of any kind and I am not encouraging any course of action.

With this I found that the things that were over the limit according to the device in the room where I work and the house in general were the EF levels of being within about 5-10 centimetres of any device that is plugged into the mains, and increasing greatly in level the closer one gets within that distance range. This included mobile phones if they were charging at the time of testing. This also included headphones plugged into a mains powered device. If you don't believe this then test it for yourself.
Regarding RF levels, it went above the levels when under around 10-15 centimetres from the router and several centimetres from the phone if it was on and connected (check it for yourself).

The only thing it doesn't do is differentiate between frequencies at higher levels, it only does that, seemingly, below around 2.5 GHz, which I must say I had not gathered from the product details. No problem really though, as the price is not that high and it does what I needed it for, which is checking if appliances and devices in the household are exceeding the limits, especially as I work all day on these devices.

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20 people found this helpful

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Mr B.
The more I use it the more I like it
Reviewed in the United Kingdom on 23 April 2021
Verified Purchase
A compact EMF meter, with many functions; easy to read; shows all three values on one screen or can change to just one; easy to use it to scope out a room or building and find the hotspots. One thing that puzzled me for a while was that I was getting high EF values when holding the meter but low values without me holding it. After I turned off the mains supply (at the main fuse box to the house) the readings (when held) dropped to the same values as when not held. So it seems that my body is acting as an amplifier of the electric field inside the house. As soon as i step outside, the reading drops off again. More investigation needed but so far i am very happy with this meter. No idea as to accuracy, except I am getting standard RF values for my phone and wi-fi box. Would buy again.

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14 people found this helpful

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STP
Useful and helpful
Reviewed in the United Kingdom on 23 January 2025
Verified Purchase
Whilst not a professional level device it is perfect;y capable of obtaining useable measurements. It is worth noting that users should be prepared to do a little background reading and also of the manual in order to get the best possible information. If you just want to see how much EMF is present - this may not be the meter you need

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2 people found this helpful

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Elizabeth Hogan
Great product and easy to use!
Reviewed in the United Kingdom on 10 January 2024
Verified Purchase
I first borrowed my friends then decided to buy my own at this very good price. I love this EMF Detector because its so easy to use as I'm a woman and rubbish with gadgets but this is so easy. It does what it says on the tin and you can choose 3 areas you want to test. Select your requirement with one button and you're off. Many thanks for producing something so easy.

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11 people found this helpful

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Roman Kuechler
Macht einen guten Eindruck. Genauigkeit bei EF-Messung konnte im Test nachvollzogen werden.
Reviewed in Germany on 9 March 2025
Verified Purchase

Das Gerät wird nett verpackt in einer kleinen Kartonschachtel geliefert, zusammen mit einem USB-C Ladekabel, einem Etui, einer Kurzanleitung sowie eine Infokarte mit empfohlenen Grenzwerten. Beim Auspacken fällt positiv auf, wie sauber das Gerät verarbeitet wurde. Die Langversion der Anleitung kann/muss beim Hersteller heruntergeladen werden.

Erste, grobe Tests zeigen, dass das Gerät gut zu funktionieren scheint. Handy, Microwelle, Wi-Fi-Router und Netzgeräte werden richtig erkannt. Wie genau die dabei angezeigten Werte sind lässt sich natürlich nicht ohne weiteres erkennen. Eine absolut korrekte Einschätzung liesse sich mit einem korrekt kalibrierten Zweitgerät aus einem höheren Preissegment erreichen. Elektro-magnetische Wellen verlieren die Stärke im Quadrat zur Entfernung, so dass schon geringe Unterschiede im inneren Aufbau der Geräte, der Lage der Antennen sowie wie sie in der Hand gehalten werden, grosse Unterschiede in der Anzeige verursachen.

Die Einheit Volt pro Meter (V/m) beschreibt die elektrische Feldstärke (E) und gibt an, wie groß die elektrische Spannung (U) pro Meter Abstand (d) zwischen zwei Metallplatten ist. Sie zeigt also, wie stark eine elektrische Kraft auf eine Ladung in diesem Feld wirkt:

Die Formel zur Berechnung der elektrischen Feldstärke lautet: E = U / d

So habe ich einen entsprechenden Messaufbau erstellt um die Genauigkeit des Gerätes auf die Probe zu stellen.
Bei einer Spannung (U) von ca. 240,4 V (AC, Hausnetz) und einem Abstand (d) von 0.3 Metern misst das Gerät ganz nahe (ca. 5 mm Abstand!) an der Platte die mit dem Aussenleiter (Phase) verbunden ist eine elektrische Feldstärke (E) von 802.5 V/m (siehe Bild), das ist ein sehr guter Wert! Rein rechnerisch hat das Feld ein Stärke von 801.3 V/m, damit liegt das Gerät, extrem nahe am Soll-Wert. Wenn man das Gerät Richtung der anderen Platte, die mit den Neutralleiter verbunden ist, verschiebt sinkt der angezeigte Wert bis auf ca. 150 V/m. Das ist bei jedem EMF-Meter, das ich bisher getestet habe der Fall. Warum sich zwischen den beiden Metallplatten nicht überall die selbe elektrische Feldstärke messen lässt, ist mir mit meinen bescheidenen, physikalischen Kenntnissen nicht bewusst.

Der Test zeigt, dass das Messresultat für ein EF-Messgerät in dieser tiefen bis mittleren Preisklasse eine absolut solide Leistung ist.

Das Foto zeigt die Messung bei angelegter Spannung (240,4 V), das Gerät ist sehr nahe an der Platte positioniert, die mit dem Aussenleiter (Phase) verbunden ist. Würde ich das Gerät noch naher an die Platte verschieben, würde der der Wert schnell 1000 V/m übersteigen.

Alles in allem liefert dieses Gerät ein sehr gutes Messresultat - zumindest bei EF-Messunngen. Eine grobe Einschätzung der Feldstärke(n) kann also durchaus vorgenommen werden, und das Bewusstsein und das Wissen über dieses Thema allgemein kann erweitert werden. Grundsätzlich sollte man sich aber schon mit dem Thema befassen, bevor man anderen Leuten so ein Gerät unter die Nase hält und ihnen Angst einjagt, weil es hier oder dort rot blinkt! Wir sollten nicht vergessen, dass Elektro-Magnetismus eine Urkraft ist, ohne die unser Universum, und damit die Welt und das Leben nicht existieren könnten. Und wer sich ständig auf Flucht vor Elektro-Magnetsichen Wellen (oder dem per se negativ behafteten Wort "Strahlung") befindet und meint in der Natur draussen fände sei alles besser, dem sei hier gesagt, dass allein das sichtbare Licht (ebenso eine Elektro-magnetische Welle!) als relativ kurzwellige Strahlung an einem hellen Tag schon ca. 100 W auf den menschlichen Körper wirft und damit Mikrowelle-Ofen, Handy und Co. an Stärke und höher-energetischer Kurzwelligkeit um ein hundert- oder tausenfaches übertrifft! Und nicht zu vergessen, dass jeder Mensch selbst relativ kurzwellige elektro-magnetische Wellen in Form von Infrarot-Strahlung in für uns spürbarer Wärme abgibt.

Fazit: Das Gerät ist noch relativ preisgünstig und liefert dennoch ein gutes Ergebnis.

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Roman Kuechler

Macht einen guten Eindruck. Genauigkeit bei EF-Messung konnte im Test nachvollzogen werden.

Reviewed in Germany on 9 March 2025
Das Gerät wird nett verpackt in einer kleinen Kartonschachtel geliefert, zusammen mit einem USB-C Ladekabel, einem Etui, einer Kurzanleitung sowie eine Infokarte mit empfohlenen Grenzwerten. Beim Auspacken fällt positiv auf, wie sauber das Gerät verarbeitet wurde. Die Langversion der Anleitung kann/muss beim Hersteller heruntergeladen werden.

Erste, grobe Tests zeigen, dass das Gerät gut zu funktionieren scheint. Handy, Microwelle, Wi-Fi-Router und Netzgeräte werden richtig erkannt. Wie genau die dabei angezeigten Werte sind lässt sich natürlich nicht ohne weiteres erkennen. Eine absolut korrekte Einschätzung liesse sich mit einem korrekt kalibrierten Zweitgerät aus einem höheren Preissegment erreichen. Elektro-magnetische Wellen verlieren die Stärke im Quadrat zur Entfernung, so dass schon geringe Unterschiede im inneren Aufbau der Geräte, der Lage der Antennen sowie wie sie in der Hand gehalten werden, grosse Unterschiede in der Anzeige verursachen.

Die Einheit Volt pro Meter (V/m) beschreibt die elektrische Feldstärke (E) und gibt an, wie groß die elektrische Spannung (U) pro Meter Abstand (d) zwischen zwei Metallplatten ist. Sie zeigt also, wie stark eine elektrische Kraft auf eine Ladung in diesem Feld wirkt:

Die Formel zur Berechnung der elektrischen Feldstärke lautet: E = U / d

So habe ich einen entsprechenden Messaufbau erstellt um die Genauigkeit des Gerätes auf die Probe zu stellen.
Bei einer Spannung (U) von ca. 240,4 V (AC, Hausnetz) und einem Abstand (d) von 0.3 Metern misst das Gerät ganz nahe (ca. 5 mm Abstand!) an der Platte die mit dem Aussenleiter (Phase) verbunden ist eine elektrische Feldstärke (E) von 802.5 V/m (siehe Bild), das ist ein sehr guter Wert! Rein rechnerisch hat das Feld ein Stärke von 801.3 V/m, damit liegt das Gerät, extrem nahe am Soll-Wert. Wenn man das Gerät Richtung der anderen Platte, die mit den Neutralleiter verbunden ist, verschiebt sinkt der angezeigte Wert bis auf ca. 150 V/m. Das ist bei jedem EMF-Meter, das ich bisher getestet habe der Fall. Warum sich zwischen den beiden Metallplatten nicht überall die selbe elektrische Feldstärke messen lässt, ist mir mit meinen bescheidenen, physikalischen Kenntnissen nicht bewusst.

Der Test zeigt, dass das Messresultat für ein EF-Messgerät in dieser tiefen bis mittleren Preisklasse eine absolut solide Leistung ist.

Das Foto zeigt die Messung bei angelegter Spannung (240,4 V), das Gerät ist sehr nahe an der Platte positioniert, die mit dem Aussenleiter (Phase) verbunden ist. Würde ich das Gerät noch naher an die Platte verschieben, würde der der Wert schnell 1000 V/m übersteigen.

Alles in allem liefert dieses Gerät ein sehr gutes Messresultat - zumindest bei EF-Messunngen. Eine grobe Einschätzung der Feldstärke(n) kann also durchaus vorgenommen werden, und das Bewusstsein und das Wissen über dieses Thema allgemein kann erweitert werden. Grundsätzlich sollte man sich aber schon mit dem Thema befassen, bevor man anderen Leuten so ein Gerät unter die Nase hält und ihnen Angst einjagt, weil es hier oder dort rot blinkt! Wir sollten nicht vergessen, dass Elektro-Magnetismus eine Urkraft ist, ohne die unser Universum, und damit die Welt und das Leben nicht existieren könnten. Und wer sich ständig auf Flucht vor Elektro-Magnetsichen Wellen (oder dem per se negativ behafteten Wort "Strahlung") befindet und meint in der Natur draussen fände sei alles besser, dem sei hier gesagt, dass allein das sichtbare Licht (ebenso eine Elektro-magnetische Welle!) als relativ kurzwellige Strahlung an einem hellen Tag schon ca. 100 W auf den menschlichen Körper wirft und damit Mikrowelle-Ofen, Handy und Co. an Stärke und höher-energetischer Kurzwelligkeit um ein hundert- oder tausenfaches übertrifft! Und nicht zu vergessen, dass jeder Mensch selbst relativ kurzwellige elektro-magnetische Wellen in Form von Infrarot-Strahlung in für uns spürbarer Wärme abgibt.

Fazit: Das Gerät ist noch relativ preisgünstig und liefert dennoch ein gutes Ergebnis.

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瑞穂
重症患者には不向き
Reviewed in Japan on 1 July 2024
Verified Purchase
高エネルギーの充電式リチウムイオン電池が使用されています。
電磁波過敏症の重症者は、充電式リチウムイオン電池から放出される低周波電磁波で
病状が悪化しかねないので、お勧めしません。

高周波と低周波の両方を測定できるなど性能はよいので
普通の人には問題ないと思います。

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Aeolos
Good value for money
Reviewed in Belgium on 13 May 2025
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As adverised, very good!

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Nick Slavov
It is a good buy.
Reviewed in Australia on 1 January 2025
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Very good instrument and very fast and accurate delivery.

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enriquez102
Para portadores de marcapasos. Funciona
Reviewed in Spain on 24 February 2024
Verified Purchase
Lo he utilizado únicamente para medir la intensidad/densidad de las ondas electromagnéticas emitidas por una cocina de cuatro placas de inducción (para ver si podía cocinar sin riesgos después de la implantación de un marcapasos). Y el aparato ha sido muy sensible en la medición, diferenciando claramente entre lo emitido por cada una de las cuatro placas, así como mientras me alejaba/acercaba de cada una de ellas.
Inconveniente menor: el manual de instrucciones no viene en español/castellano.

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EMF Meter, Advanced GQ EMF-390 Multi-Field Electromagnetic Radiation Detector 3-in-1 EMF ELF Meter & RF Spectrum Analyzer, Cell Tower Smartmeter Signal Detector RF up to 10G Data Logger

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5.0 out of 5 stars Accurate and simple to use 3 in 1 (EMF/EF/RF) meter

5.0 out of 5 stars It does work

4.0 out of 5 stars EF not accurate due to response to our body

5.0 out of 5 stars A reassuring piece of kit to have and great for the price

5.0 out of 5 stars The more I use it the more I like it

5.0 out of 5 stars Useful and helpful

5.0 out of 5 stars Great product and easy to use!

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5.0 out of 5 stars Macht einen guten Eindruck. Genauigkeit bei EF-Messung konnte im Test nachvollzogen werden.

Macht einen guten Eindruck. Genauigkeit bei EF-Messung konnte im Test nachvollzogen werden.

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4.0 out of 5 stars 重症患者には不向き

5.0 out of 5 stars Good value for money

5.0 out of 5 stars It is a good buy.

5.0 out of 5 stars Para portadores de marcapasos. Funciona

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Product Summary: EMF Meter, Advanced GQ EMF-390 Multi-Field Electromagnetic Radiation Detector 3-in-1 EMF ELF Meter & RF Spectrum Analyzer, Cell Tower Smartmeter Signal Detector RF up to 10G Data Logger

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Accurate and simple to use 3 in 1 (EMF/EF/RF) meter

It does work

EF not accurate due to response to our body

A reassuring piece of kit to have and great for the price

The more I use it the more I like it

Useful and helpful

Great product and easy to use!

Macht einen guten Eindruck. Genauigkeit bei EF-Messung konnte im Test nachvollzogen werden.

重症患者には不向き

Good value for money

It is a good buy.

Para portadores de marcapasos. Funciona

Product summary presents key product information

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