EMF Meter, 3-in-1 Electromagnetic Radiation Detector for EF MF RF Field, Electric Magnetic Radio Frequency Monitor, Portable Rechargeable Battery Reader for Microwave Ghost Hunting, BH-W01

Solid Budget EMF Meter
This is a pretty decent little EMF meter for what it is. Now while it isn’t a professional device, much less intended for lab work, it would be a decent choice for the average consumer who just needs a no-nonsense EMF meter to find electrical, magnetic or RF fields.The unit comes with an built in Li-Ion battery rechargable by USB cable (supplied in box). Unit also comes with a nice little carry bag and has a belt clip that is removable.The display is in full color and has a decent layout and is very legible. You get four modes of operation:The first display mode has EF, MF and RF displayed simultaneously; there are three other modes – each dedicated to one of the three fields that will display the current, average and maximum readings and a bar graph for a graphical display of what’s being measured over an 18 second period (this is not adjustable unfortunately).The display itself is fairly bright and legible although it does wash out at certain angles (as is to be expected on such a low cost unit).Sensitivity seems to be pretty usable – I have observed very strong fields to be picked up as far as 5-10 feet away, so for all household based purposes I would think this is pretty adequate. Reactivity was pretty fast.As far as the accuracy goes – it seems to be ok for what it is, but this unit is NOT intended for professional work. The strongpoints seem to be finding EF and MF fields – my unit found some strong MF fields that I didn’t even know were present in my GF’s house. It also detected other common sources typically found inside a house and also picked up power line emissions outside from as far as 120 feet away. It even picked up a lightning strike about a half mile to a mile away during a thunderstorm.In regard to RF – the manual says that RF can be detected between frequencies of 40Hz to 10gHz so as is the case with most consumer units, this is going to be hit and miss, although I will say it picked up WIFI router signals pretty easily both in the 2.4 and 5gHz ranges. It also picked up the transmissions from a CB walkie talkie on 27.205 mHz (ch. 20), a cellphone and a wireless security camera.So the RF does work, but do not expect this thing to detect actual 5G signals as the frequencies are way above this unit’s upper limit but it should detect a lot of the 4G range (as was the case with the cellphone and 5gHz wifi router) that are below 10gHz.Unit has several alert configurations – I have found the least annoying mode is just to have the red LED flashing when I get into high ranges, but unfortunately you get vibrations with the audible alarms which is a bit annoying for those of us who don’t need vibrators when we can hear just fine. The cool thing is the audible alarm and LED will beep in faster rates from medium EMF to high to saturated – which is handy if you’re not looking at the display when probing. I presume the vibrations do the same thing but I honestly wasn’t paying much attention to it as I just simply found the vibrate feature annoying.There are several other options for alarms, up to and including no alarm types at all.There are no adjustments for the brightness of the screen with the exception of setting vibrate-only alarm which will make the display dim a little bit (assuming this is power saver mode).As far as the controls go – you get three buttons. The first controls the type of unit for MF fields (you can display it in either mG or uT) and this button also controls the auto timed shutdown feature. The second button turns the unit off and on, and also a quick press on this button will hold the current readings in any mode. The third toggles between the four display modes and also controls the alarm preferences of the unit.Overall this unit’s chassis and button layout is basically a carbon copy of the Bosean/Moesapu FS-5000 geiger counter – seems solidly built and reasonably durable. It’s also fairly small in form factor.Generally, for my purposes and needs, this meter is fine – again it’s not a lab grade instrument but it pretty much met my expectations for detecting EMF fields – while the accuracy of the actual readings displayed probably isn’t all that great, the purpose of this unit is to find such fields, not be part of a PHD dissertation for some EMF engineer at MIT or whatever.Recommended – well worth the $45 I spent on it. Five stars.

It’s sensitive
“This review is for EMF Detector, 3-in-1 Portable Electromagnetic Field Radiation Detector, Electric Field, Radio Frequency Field, Magnetic Field, EMF Reader with Rechargeable Battery for Home, Office, and Ghost HuntingWe are collectors of fun gadgets because you never know when you own a house what you’ll need next. This is definitely a sensitive little device. It went off around our microwave, lights, and other random things. The EMF detector seems to be more sensitive based on the way it’s pointed so I’m thinking vertical reads may be the best way to go. I’m not sure how accurate it is because I don’t have any other devices to compare it to, but it’s fun to play with!NOTE: As an Amazon Vine reviewer, I receive this product without paying for it directly; however, I have to claim the full value of this product on my taxes as this counts as a taxable gift and I must pay taxes for the taxable value of this item.”

Works Well at Detecting
This functions very well…. When reading the display divides it into three categories. We have been having some issues with a place near power lines. This confirmed our suspicions which is a whole other dealy. The alarm methods all worked well and noise is not an issue. Display brightness is good and easy to read. It does seem to be very sensitive and will detect very well if it is there…. Size is good with its lil case to always have closely if traveling or keeping in a drawer. Easy to charge and last a long while before needing to recharge. Value is decent at under $38.

Radio frequency and electric and magnetic fields are all around us. And they impact us in many ways. Generally, it’s not suggested to stay too close to them, and proximity should be avoided as much as possible. I’m not going to name the reasons why, as you can easily look it up, but to give a general idea, it’s suggested that exposure to these fields can cause health issues. I’m not a health expert, so don’t take my words for it. You should always look these things up yourself. Anyway, this tool allows you to detect radio frequency, electric field and magnetic field.You generally find higher radio frequencies around transmitters or receivers. Like radios, walkie talkies, wifi routers, wifi cameras, etc. Anything that transmits or receives over any radio frequencies. Like your key fobs, etc. An electric field is usually found around items that consume power. Say if you have an electric drill, a crockpot, a rice cooker, or your fridge, etc. Depending on your device, they generate a different amount/size of electric field. And the magnetic field, as the name suggests, is typically detected around magnetic items.Now, there are many reasons why you may want to know if these are present in certain areas. For example, if you are using a magnetic compass or a tool that relies on a neutral magnetic field, then you may want to check if there’s a strong magnetic field around it. Or when installing your wifi router or wireless camera, you may want to check and avoid other strong sources of radio frequency to reduce interference. These are obviously just some examples. There are many reasons why you may want to find these out. So this tool is what you need to get the job done.Now to the tool itself. I like the fact that it’s rechargeable and doesn’t need me to pop in batteries every once in a while. It’s got a rugged shell, which is nice if you use it in industrial areas. The screen is bright, I haven’t had any issues reading it even outside (although the day I tested this outside, it was cloudy). Now, a nice feature is that not only do you get to see the live data, but you can also open the graph and see the historical data. That’s a nice feature, if you are detecting short bursts of radio frequencies, etc., that are not constant.There’s also a built-in vibration and sound feature where if the values hit certain numbers, the device starts to vibrate, beep and flash. A. Very cool feature if you are using it to detect in real time. My last note is about its accuracy. That’s where things get a bit, hmm, grey. Well, I have another EMF detector that I have used for years and mostly trust. They detect pretty much the same things, but the values are not the same, and sometimes this specific detector may not detect frequencies or fields based on how you hold it. Now granted, the position of the sensors is very important, but I think there is much room for improvement. Overall, it’s a good tool for casual detection. If you are using this for work or safety, I would look for a more tested and reliable tool.

Works as described! Accurate for what I’m using it for. I try and keep the levels of radio frequency low in the house as my wife gets migraine headaches every so often. You’d be amazed how many items in your house give off certain frequencies. This device helped me eliminate certain lighting and moving of routers. Put this thing up to flourscent lighting and the alarm goes off immediately. Ever since using this device my wife’s headaches have minimized and th3 frequency of them has decreased. Excellent product.