EMF Meter,Advanced GQ EMF-390 Multi-Field Electromagnetic Radiation 3-in-1 EMF ELF RF meter, 5G Cell Tower Smart meter Wifi Signal Detector RF up to 10GHz with Data Logger and 2.5Ghz Spectrum Analyzer

This meter may be a lifesaver. 2 months ago I had installed a new security camera basestation in a cabinet in our family room where my family spends most of our time. When I got the EMF meter and moved around our house I noticed extremely high and likely hazardous RF (many multiple times that of our WiFi) coming out right by our heads from this camera basestation. I wish I had bought this meter months ago! I changed the default settings on the basestation and was able to confirm with the EMF meter that the levels are now safe. Then I discovered very high EF readings where one of my kids sleeps! Turns out there’s a live wire in the wall by the pillow on the bed, and I was able to fix that situation by unplugging devices from that circuit and confirm using the meter that the issue was solved. I’ve owned this thing for two days and already it’s alerted me to 2 potentially significant health hazards! 5 stars from me and I’m recommending to my friends. Also, the device itself is easy to use and I love how it shows EMF, RF and EF levels separately.

This tester worked great out of the box, battery was fully charged and has stayed charged for some time, the measurements are all repeatable, i love the screen display layout, its well thought out and can display all 3 tests at same time and you can make any one of them the priority test for the audio alerts and graphing, i tested wifi and found it to be very high, i have since hardwired all internet connections and turned off wifi, i have much less brain fog that was noticeable in just next 2 days, and it has been great for last month so far, been going on further doing electric field tests and have since shut off power at breaker box to bedroom and that has had positive results also. I have checked my Iphone and found it has much more radiation than i imagined, i now wear it only in airplane mode and have since had pains in that area go away, cell phone radiation is for real !! I do electronics repair so i am used to using test equipment and so far have seen no faults in this unit, it has a pc connection with software for logging but i havent tried it yet. The carrying case is nice. For the health issues this thing can save you from its priceless, I am very happy to have bought this.

Value for money

I just got my GQ EMF-390 meter and have spent a number of hours playing with it and testing it. I like it, and it's a good meter, but you gotta learn to sweet talk to it. In other words, you have to invest some time in learning how to use it properly. I am in training with the Building Biology Institute to become an Electromagnetic Radiation Specialist. I'm speaking for me, not for them though. But, I mention it because I've spent a lot of time studying EMF meters and EMF measurements lately. That point of view affects how I view these instruments. Consider this an introduction to a review, as I just realized I'm running out of time and have to continue later. So, for the moment, I'll just post some high points. 01) This is a consumer grade instrument, which they say in the FAQ, not professional grade. So, balance your expectations accordingly. However, that doesn't mean it can't be useful to a professional, as well as consumers. 02) The quick start guide is just that. Do read it. But realize that's only the beginning of your journey. Download the full user guide, which is a PDF of many pages, and go through that. At least their documents are written in mostly good English, as opposed to Chinese-English. As a bonus, the quick start guide is in color. 03) Learn how to operate the controls. This may not be obvious at first. Once you're used to them, it will seem much more natural. While the buttons don't have printed labels on them, they do have shapes molded into the plastic, which you can see if you look. Some buttons do different things depending on whether you press and release, or press and hold. If you have the meter facing you, in landscape (wide) mode, and the buttons and model number are on the right: The TOP button, which they call S4, can: check the battery when powered off, power the unit on and off, activate the menu system when powered on, select items in the menu system, and sometimes change things in the menu system. The BOTTOM button, which they call S1, can: back you out of most menus, activate a menu to select the different screens of the device. So, an effective technique to go through menu settings is: press the TOP S4 button to get into the menu, press one of the middle buttons to navigate, press the TOP S4 to select an option, press the middle buttons to change an option, press the TOP S4 button to finalize your answer. Sometimes, pressing S4 will change an answer, so make sure the screen says what you want when you're done. You can then get out of the menu system with the BOTTOM S1 button. You can, if you wish, go back into the menu, and examine each setting without changing it to verify the settings. When not in a menu, the middle S2 and S3 buttons do various things, like allowing you to alter units, switching from EMF (magnetic and electric field) mode, to RF (radio field mode), moving a cursor, zooming in or out, etc. You kind of have to play with these buttons on each screen. Sometimes they do something different if you hold them down. 04) IMPORTANT, learn how to point the meter. Inexpensive meters have sensors which are directional, and they care about how they're oriented in space. This meter has a 3 axis magnetic field sensor, which they label on the screen as EMF. So, you can turn the meter any way you want to read magnetic fields. BUT, the electric field sensor (EF), and the radio field sensor (RF) are directional. If you're pointing the meter the wrong way, you may get wrong readings, or no readings. This is documented on page 5 of the quick start guide, as well as in the PDF. Nevertheless, it bit me and caused me to lose some sleep last night fretting with it. I haven't done much with the EF sensor, but I've been working with RF. This meter may NOT work like you expect, but it will work if you treat it right. My Safe and Sound Pro II meter and my Cornet ED88TPlus will both respond to most RF signals if you are holding the meter in front of you in portrait mode (vertically), with the display facing you, and the RF source, like a cell tower, out in front of you. This meter will NOT respond that way. With this meter, you would be pointing it's sensor up into the sky. Imagine this meter is a small airplane. Place the meter flat on a table with the buttons and label near you and the display face up. The near end with the buttons is the tail. The far end where the propeller of a plane would be (its nose) is the front. The far end, as in edge, of the meter is where the RF sensor is pointing. If there were a cell tower, for example, out in front of your table, you could get a reading on it. In terms of an airplane, pitch means to bring the nose up or down. Yaw means to slide the tail left or right, turning without changing the bank of the wings. And roll means to bank or tilt the wings left or right. Rolling left or right is (sort of) what a race car does going around a sharp turn on a banked track. For lack of better terms to use, this meter CARES about pitch, roll, and yaw. If you pitch the nose of the meter up or down substantially off the line to the source, you will get bad or no readings. If you yaw the meter left or right substantially off the line to the source, you will get bad or no readings. But, that's not all. The meter cares about roll too. All radio waves move outward from the source. But they also have orientation in space. They may be oriented vertically as they move outward. This is called vertical polarization. This usually requires a vertically oriented antenna to receive well. They may be oriented horizontally as they move outward. This is less common and is called horizontal polarization. This usually requires a horizontally oriented antenna to receive well. There are even some sources which are circularly polarized. If you have a cordless phone, you could test your meter with it. At least in the US, almost all cordless phone base stations radiate a strong signal all the time. One you should not stay around. Remember that verbiage on the box that says it will work 900 m away? But you don't sit 900 m away do you? I have decommissioned all my cordless phones. But, they make a great little personal microwave beacon for testing. Just plug in the cordless phone base station to a power source, set it several feet away, and start taking readings. It should put out a continuous signal. On meters with a histogram mode or moving graph mode, like the GQ EMF-390 or the Cornet ED88TPlus, you should see a continuous signal or a continuous string of pulses. You can also test the meter pointing it at a cell tower, etc. So, what this all this means is, assume you have pointed the meter up and down (pitch) to line up with the source, and you have pointed the meter left to right (yaw) to line up with the source, and it's lying flat on the table (or in your hand) with the display up (roll), you STILL may not get a good reading. This was my experience testing with the cordless phone base station. I had to roll the meter 90 degrees, so the display was facing to my left. THEN, I got a strong and consistent reading. You may have to do similar gymnastics with the Cornet ED88TPlus and other meters. This is true with any meter with single axis sensors. This may make the display hard to read because it's facing away from you. The difference between this meter and the Safe and Sound Pro II and the Cornet ED88TPlus is that those measure RF with the display facing you as you might expect, and this one doesn't. That's it for now. I hope to add more later. This should get you started. Forgive any typos as I was in a hurry. Bottom line, this seems to be a good meter if you understand its limitations and treat it properly. If you treat it wrongly, it will give you bad readings in return. Hope it helps. Ron

I found out a lot using this little device, and made some changes. I used to keep my iPad directly in my lap, usually plugged in (with a long cord) when I was using it. Not anymore! It's screaming hot when you measure what's coming off of it (alert went off consistently and it was well over what was considered safe). I plug it in now across the room; and unplug it to use it, and then only on a pad. This device measures RF, ELF and EMF. It's good not to forget any of them. It's cheap and it really works!

Very easy to use and it goes off with light and sound at danger levels. Has 4 buttons. Left is setup, goes up and down through option. Right button is enter, left button opens menu then works as back button. Push right button after turning on and it takes you to user preferences. Up down(center 2 buttons) select with right button. Can set auto rotation or lock in vertical or horizontal if wanted. Can set your own limits. Comes with good plastic card thick like credit card, it has low medium and high limits in an easy to read and follow chart. It auto identifies sources- power lines, cell phone and RF wifi. Nicer wider range than other models. Easy to use on 3 way readings or single settings for RF or magnetic or electrical radiation. Very pleased. Battery probably lasts 18 or 24 hours. In 5 hours use I had 83% battery left. Comes with battery installed at 100% charge. Was on 100% battery for almost an hour. You can leave it on. Does not get hot or even warm in 3 hours use. It gives the highest reading while measuring. You can change sample hold speed to speed or slow readings. Comes at 3 seconds set, works well there. Basically set time and go. Gives awesome detail on individual settings. Gives required number readings on 3 way. Then it blinks and beeps when you get a high reading. Hold onto lower end of meter where wrist strap is already installed. Comes with carry drawstring pouch, and water resistant soft pouch, usb cable and instruction manual and battery and tip card for overall safe reference levels to keep with you. Can customize levels of alarm beeps and light and set units of measure but it is already set up right out of the box. Handy good size, easy to hold and it is always taking readings and displays highest reading for that time of measure. Easy use and well done and solid. Not too light or heavy.

Boy is this handy & informative Very Smart Health Tool to have. Especially if you are on the OptOut list from Smart Meters! It helps you locate & measure any EMFs in & around house, property, neighborhood, electric car(!), office etc. Really glad we chose this one , as will accurately measure any EMFs including dirty electricity of improperly ir old wired homes, radio frequencies from Smart Meter, smart phone, smart appliances etc. To test: Turn on (will be in the emf read mode) & put up to utility meter level at the dark aperture slot. If it immediately starts beeping & flashes red (danger levels), then set it onto RF, will give you more particulars & a graph readout. Then can test up to 5 frequency ranges. Can save data & transfer to computer. Elster AB1 analog faceplate electro-mechanical meters are 'stealth' meters. According to Honeywell the "Elster the AB1 analog meter, can conveniently be initially or retroactively easily outfitted with communication capacity, 1 or 2 way." [=RF chips].

This item I believe works as advertised Soon as I got it turned it on it had a full charge. I then went straight to my home electric meter and it started beeping. I put it up to my cell phone and router and you can see the readings went up. You are going to have to play around with this and learn about the readings of V/M, EF, EMF, RF, PW, NW/ CM2 mean

I tested the device under various conditions, and the build quality is excellent. I really like this type of display because it’s highly energy-efficient, and the screen remains perfectly readable in direct sunlight even without the backlight. The readings appear to be accurate and realistic, unlike the phantom readings I used to get with my old BR-9A. Another major advantage is that the battery is removable, and it uses the widely available 18650 cell. That’s a huge plus in my opinion. Overall, I’m very satisfied with the device. The only thing I didn’t like is the way the PC connection is implemented. The software feels rather unfinished, and without a proper data logging feature, connecting it to a computer doesn’t offer much practical value. Hopefully, future software updates will address this issue. That said, this is only a secondary feature. I definitely recommend this device—at this price, I simply couldn’t find anything better! 🙂👍

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。

Very good instrument and very fast and accurate delivery.

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.

Must have in big city