Cell Sensor EMF Detection Meter

This is sort of "lacking in real quality" but what do you expect for $25? So, the fact that it works, though you do it with no real idea of any sort of accuracy of any kind, and it does the basic function, that of telling you "Hey, you have a lot of leakage power here!" --- it does that well. Example: I took it down to my newer GE over-the-stove micro wave oven. From the very front, it was not too bad, but from the sides, and top/bottom, it went ballistic and set off the lights and buzzer. TI'm afraid that this is sort of typical from all of society and electronics manufacturers. (A lot of money rides on this stuff!) On my older later 1980's vintage Ammana Radar Range? Almost zero leakage and detectable output. Our standards are so lax these later years that almost anything goes and THAT is probably not good for our bodies. No radiation in general is good for you when it is large enough that it causes currents to flow through you on a cellular level inside you body...... it is a cumulative thing - and some folks are MUCH more suseptable to it than others so the people who set the standard are hard put to set a point of safety: safe for me may be unsafe for you. Think of this: after 15 or 20 years of such high levels of exposure..... what shape will you be in? The associations have not been PROVEN yet because it takes so much time, but cancer and tumors are the primary concerns, in general, right now...... the big Questions are, "How much is too much and for how long?" No one absolutely knows this yet. (It could a bit like, "We always suspected that cancer & cigaretts went together!") We all know already that cell phones output a LOT of radiation..... the further from the cell tower you are located when you talk, the higher the cell outputs it's signal strength to get the connection working well, and.... the greater the risk to your body and brain cells. We all already KNOW this fact, we do NOT NEED a meter to tell us this as new information..... and this device will not really give you a real good idea of how much you are getting exactly anyway. However, what it will do, is that it will tell you when you need to get further away from some radiating appliance, phone, TV, microwave oven, or such.... to some degree anyway. What makes this a good deal? As opposed to spending 5 times as much (or more) for a "Tri-Meter" is that it gives you a general idea with more ability to tell one level from another. It does not cost you $150 to find out what you already knew intuitively anyway. (humor intended here) If you want real quality, do not mind paying for a higher level of precision and accuracy, you can do as I did and buy something like the ExTech 480836...... aaaand you will spend basically $250 too. It is NICE! Has some real good quality in it equal to many of the good quality multi-meters you can get, and it is also tri-mode ops which is a plus compared to a single mode like this one. So, I use this to give rough estimates in ultra-low frequency applications only, and it has a rather short close range limited ability too. But for $25 what more could you ask for? The small probe is a nice conventient added plus for it as well. Enjoy!

Highly recommended EMF Meter. Simple to use and works great at recognizing problem spots. Microwaves give off EMF's even when off, it's a good thing to stay 5 feet away from them. I was able to fix an EMF source around my computer. The EMF's were coming from the wires near my feet. So I plugged a power adapter further away on another plug and that fixed that problem. I would have never known about that EMF problem. I like the way this unit beeps and flashes a light when the EMF is too high. The power button looks very sturdy, the unit is light weight but this is a good thing. If you need an EMF meter that is easy to use and low priced, I say buy this one.

Couple things I noticed about this device. First, it measures both RF (radio frequency) and ELF (extremely low frequency) together, with no way to test each individually. Second, it is NOT designed to measure cellphone tower radiation and will not detect them, only the close RF radiation of a cellphone. It couldn't really pick up on my 2.3 GHz cordless phone emissions either when it was sounding the dial tone, maybe that frequency was too high. But it wasn't designed for that either. It's sensitive to regular cellphones frequencies though. I also realized after buying, that since cellphones have to meet emission standards, there is not much point for me to measure its RF output other than to confirm it meets those standards... well, other than to see whether those things you stick onto cellphones to lower their RF actually works. Those are my only gripes. Now, onto the good points. If you follow the instructions, this thing will indeed give you a decent approximation of the radiated power output of a cellphone. So it's true to advertised claims. Where this device shines is as an ELF meter for measuring the vibrating magnetic fields around clock radios, power lines, computers, appliances, and home wiring. I tested the frequency response and it measures best ELF fields between 30Hz and 900Hz, sensitivity rolling off greatly outside that range. On the "high" sensitivity setting, it even registers sudden movements of the probe, which I think is the CellSensor cutting the flux lines of earth's magnetic field. So if you shake/wiggle the probe in a given space, you can get a very rough idea of whether there's a DC magnetic field there. Like if you wiggle it just a little above a magnet the meter will go off the charts. So when you do your ELF readings, be sure to keep the probe still if you want to measure just the ELF fields of things nearby, otherwise you'll get a false reading generated by stationary magnetic fields. So in summary, this was worth buying, but mainly only to measure nearfield cellphone emissions and ELFs from current-carrying devices. It won't work for detecting cell tower radiation, finding wifi hotspots, measuring wifi output, and it won't detect the strength of static magnetic fields unless you get creative and wiggle the probe. For those applications, I recommend a proper RF Signal Detector good for 50MHz to 6Ghz ( Professional Wireless RF Signal Bug Detector ), and for static magnetic fields look for a DC Gauss Meter. I haven't tried to detect ghosts with it, but it probably also ought to detect EM disturbances caused by alien ships hovering over the house, haha.