Instruction: Output yes if the supporting document can answer the given question. Otherwise, output no.

Input:
Question: can this be used to detect EMF from smart meters, cell phones, wi fi, microwave, power line, refrigerators?
Document: My personal opinion is that it is not known what biological effects may occur in the presence of a magnetic field generated by ultra low frequencies.Also, I saw some people were having trouble detecting the radio bursts from their cell phones and/or wi-fi. I didn't have that problem. I was able to detect very strong bursts of radio/microwave signals from my droid X and from my wireless router.
This device has been so helpful to us. First, it established that we are NOT living in a dangerous amount of EMF as we suspect we were. Our smart meter has no significant readings, nor does our Wifi or local cell tower.BUT&#8230;.it did detect an unknown short in the wiring of our house. And it let us know our new microwave was spilling high levels all over the kitchen.
Trifield 100XE EMF Meter is one on the best Tri meters I have purchase in years. I used it to detect the levels of EMF and Microwave signals around my house. Great product!
We were only testing for EMF from power lines, so we only used two of those settings. Those EMF settings let you control which of the three lines you see on the screen are in use. For example, if you set it to one of the settings (Magnetic 0-100), it will look for EMF and use the top line on the meter.
I love the meter for helping me personally determine if I was comfortable knowing that a room in my place had dangerous levels of EMF. (Obviously I'm not and backed out of the place!) Now I'm testing everything like the microwave, tv, computer, cell phones, etc (of which none were as close or dangerous to the EMF reading at that place!). This was helpful to a person who really didn't know much about EMF and I am grateful to have bought this device.
I bought this meter to measure the EMF around our house in order to limit our exposure. Most of us already know the usual culprits--blow dryers, microwave ovens,  cell phones, computers. Health experts have advised the public to keep alarm clocks a good distance from our heads, as they also emit high levels of EMF. Heeding their advice, I've made sure to keep my corded telephone/alarm/radio unit at the far end of my nightstand.
works as expected. I wish there was an auto off feature. used before buying house to test power line effect.Oh and this thing detects ghosts too! Bonus! !
I have used this machine when we look for our new home to check the power line/high voltage. I recommend this to anyone who have health concerns about power lines. Working well.
This detector goes as high as 3GHz but the microwave spectrum is from 300MHz to 300GHz. So it should detect microwave ovens, 3G phones and 2.4GHz routers but it may not detect some of the WiMax routers that, i think, use over 5GHz. So basically you have to know what your device uses before you assume that the meter isn't working.
Hopefully, it can measure microwave towers (? cell phone towers) and cell phones.
Answer: yes