When people ask about "radiation levels" for cell phones or wifi, do they really mean EMF measurable by this device? Or do I need something different to measure other potentially-harmful signals around me?
889885
Yes, these devices measure the electromagnetic radiation from cell phones, cell towers, and depending on the range of the device, power line radiation. However, the inexpensive models are not very accurate. If you are experiencing EMF sensitivities, then you should search for a more professional meter.
368049
every electronic device give off emf. try to limit your expoure to it by moving further away from it.its geometric double your distance and you reduce it by 1/4.
1323077
This unit is very sensitive. I would think it would be most useful for testing cell phones or any other electric or electronic device.
1628208
The answer is no. Similarly, if you in reference to cellphones being a high EMF source, it doesn't seem like the brightest idea to hold one to your ear due to repeated introduction of radiation from the phone (even if it sits in your pocket!). Moreover, card readers at retailers are a high EMF source (as are computers, wireless routers, microwaves, appliances, cars, etc.). As a general rule of thumb, you want to keep your credit cards and all other cards with a magnetic strip away from other magnets (particularly anti-thief deactivation pads on retailer's counter tops). I hope this gives a somewhat through answer to your question.
422737
I am pretty sure that cell phones operate on microwaves. These detectors are looking for the simplest form of radio waves. The cell phone signals are also scrambled.. I am not sure if that would change anything.
2029878
Interesting Question - that's why I bought the one I have. I was very surprised at the results. I have stood under high tension transmission lines and utility poles with a transformer and they are high enough to pose little problem. Some of the highest reading I encountered was the motor on my high efficiency water heater motor, computer scanner and printer power supplies, a bedroom alarm clock - but you virtually have to be hugging them - if you are a foot or two away, the levels are not dangerous. I believe getting a good unit is worthwhile, just to prove what is safe to yourself. I haven't encountered anything dangerous in my normal surroundings and activities and feel safe. Not to say there is nothing out there - need to avoid MRI, etc. Measure at a source and then a foot or so away. Good Luck - I encourage you to get one - you'll feel better knowing. Ron
1518572
No, because it is only for low-frequency radiation. A cellphone emits radio-frequency signals. To clarify, the instrument can measure the strength of 60 cycles per second fields that house current might cause, but cellphones transmit frequencies that are 100,000,000 times that. You would need a totally different device for cellphones.
1655624
Yes; this device does not emit radio waves, and No; not if you leave it in plain site. Just buy it- you won't be disappointed, it's an excellant unit.
526500
also if you use them near a tv or any electric appliance it could register 10 milligouse this is a normal read if u are worried about voltage or shorts use a dwell meter it tells if the wire is over loaded but theghost meter is great for sensitive emf fields
1527744
Cell tower radiation may have higher frequency than the upper frequency limit of this meter, if this is the case, the reading would be lower than actual radiation intensity. If the cell tower frequency is lower than 3.5GHz, you could use it. You would need to contact the cell tower owner to know it's frequecy first.
839204
I just called JNH directly and asked for the EMF rating. Joyce was the ladies name I spoke to. She states that the EMF rating is 2-4mG when the sensor is 4" away! Really high. Comparably, the Rocky Mountain saunas are 0.6mG when less than one inch away. The Sunlighten is rated at 0.03mG when one inch away, FYI
1627605
Yes. This meter is very sensitive. I will detect the signal from an individual cell phone or a nearby tower. It is particular useful when setting up wifi to make sure you are using the lowest power setting, and locate the wifi transmitter away from people.
1754027
Since I primarily bought this as a wireless speaker for music content on my phone (especially when in the shower), I wasn't concerned about radiation, and unfortunately don't have the answer to your question. However, even when you answer a call from a linked cellphone, it's not necessary to switch on the privacy feature and put the handset to your ear. You can simply use it as a speakerphone and avoid any risk you're concerned about.
1520764
I am assuming you are referring to chemical radiation like fallout since you said "also" It is very finicky and can get inaccurate reads by interference or random amplification and canceling behaviors among the various waves present in its location, but it does give an indication of the strength of wave activity in comparison to other nearby areas. An accurate instrument is much too sophisticated for a lay person to have as a consumer level product. I think they make instruments that detect the presence of chemical radiation, but this just claims to "detect" the presence of EMFs and provide a somewhat general level reading from room to room. I am assuming you are referring to chemical radiation like fallout since you said "also" It is very finicky and can get inaccurate reads by interference or random amplification and canceling behaviors among the various waves present in its location, but it does give an indication of the strength of wave activity in comparison to other nearby areas. An accurate instrument is much too sophisticated for a lay person to have as a consumer level product. I think they make instruments that detect the presence of chemical radiation, but this just claims to "detect" the presence... » Read More I am assuming you are referring to chemical radiation like fallout since you said "also" It is very finicky and can get inaccurate reads by interference or random amplification and canceling behaviors among the various waves present in its location, but it does give an indication of the strength of wave activity in comparison to other nearby areas. An accurate instrument is much too sophisticated for a lay person to have as a consumer level product. I think they make instruments that detect the presence of chemical radiation, but this just claims to "detect" the presence of EMFs and provide a somewhat general level reading from room to room. « Show Less
1799544
This works on all radio frequency. When my cell phone is idle at home (using WiFi for APPs), there is no radiation. But when my cell phone is in a call (need to transmit), this detector went all the way up to the top red LED. It's a great tool to measure radiation quickly. It didn't give me fine reading as that hundreds dollar detector I used in NASA/JSC, but it close matches the reading to that expensive detector.
269669
I have checked the listings on the Hollywog Wi-Touch device, the instruction sheet, the 'Guidance & manufacturer's declaration for electromagnetic emissions' sheet and cannot find an AMPS listing. I only found on the last sheet a 'range of frequency' achieved by the device: 80 MHz to 800MHz. I can say from experience that an old style TENS unit gives you a broader range of choices for electrical use and emission, due to the power being controlled on a dial, instead of programed on a device with a remote. However, with consistent use the Hollywog has worked for me when my back pain acts up. And the 'freedom' from the lack of wires and bulkiness of the old TENS unit are really appreciated. Also you can up the power on the remote if you need it. I am glad I bought this unit.
1793665
I tested it against other emfmeters.No documentation is available. I suppose it measures V/m for low frequencies waves, not. radiofrequencies.It worths price se paid!