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

I have had two major benefits from this device:1. At home. I found extremely higher EF rating at my desk. It turned out my sit/stand desk electric motor was very leaky. I also have the habit of switching the electric reclining sofa off at the socket because on standby it was adding a lot of EF.2. House hunting. A very important device that shows how well the electrics in a house have been installed - an absolutely huge difference between different houses. Some bedrooms you test and think 'no way can I let anyone in the family sleep in this room'.Each estate agent seems surprised when I use my device having not seen one in use before - hopefully more people will start using and benefitting their long-term health.And when the estate agent asks why? I ask if they would be happy to live under an electricity pylon. If not - well science hasn't proven definitively that living under an electric pylon will impact your health and give a higher chance of cancer - but we are at the stage where we can understand enough about the impacts of bathing your cells in a bath of electric field over the long-term without waiting for science to prove definitively about the issue (which will happen in time - it's just a very hard issue to measure).

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.

Good, but… it would be better if you could isolate and/or identify the frequency of the electrical fields as that is critical information in determining the risks involved from certain levels of electrical fields. Also detects EMF and RF and can present all three at the same time, which makes it a useful piece of equipment.

It provides a quick clear output of electrical, radio (Wi-Fi), and electro magnetic (microwave) field strengths. It indicates numerically safe levels up to clearly dangerous levels. I’ve decided personally not to stand nearer than 5 feet of my operating microwave. (This does not apply to the microwave being used as a convection oven). Every house should have one of these well designed meters.

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

I had my doubts but this works very well. Consistently gives accurate readings. Some people have left reviews saying the readings change if you hold it - it literally tells you in the instructions that this can happen if you hold it incorrectly. Follow instructions and this works a treat.

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.

Superb broad range detector, checked against an Openreach Engineers very expensive meter and spot on correlation!