I'm not sure if anyone has noticed, but there seems to be a gap between the ELF/VLF frequencies and the RF/MW frequencies that most commonly accessible meters do not detect because it is not within their detectable frequency range.Take, for example, ham/amateur radio frequencies: "Many ham bands are found in the frequency range that goes from above the AM radio band (1.6 MHz) to just above the citizens band (27 MHz)" (https://electronics.howstuffworks.com/ham-radio2.htm). Yet, the Acoustimeter AM-10 only goes down to 200 MHz, and is thus unable to detect such frequencies. Other common meters for lower down in the spectrum also wouldn't detect them.
Yes, some of us are aware of the gap.
But most people are mostly concerned about microwaves and magnetic fields.
You may find the description interesting about the Trifield 2 below this video:
I actually have heard that podcast and have seen the description of the Trifield 2; I recall they mentioned that it might pick up analog signals, which aren't supposed to be as harmful. Incidentally, in episode 6 of the "EMF Warriors" podcast ("Q and A with The Founders – Cabling and Home Appliances") David Blake mentions that "a lot of EMF/RF meters have a gap between the RF range and the low-frequency".
I actually have seen some of your videos! You make some interesting videos! And what do you think of the Esmog Spion? Do you like it? Was it worth it's cost?
And which version of the Esmog Spion do you have? I noticed that there are three versions on the link you provided.
The harm of analog signals will likely also depend on the signal and how close you are to them.
I noticed the gap back when i was researching meters. I just looked at the frequencies
meters measure and noticed it because i wanted to measure everything.
I have the Spion with light module: currently 409€, although it was expensive i would buy it again.
To know if you want to buy it depends on how much you are willing to invest in meters.
Recommending meters is difficult. I cannot say for sure you should buy it or not.
You can read my thoughts about this and other meters in the subtitles in my videos
and the comments below those videos.
Yeah, it didn't seem like the most expensive version of the Esmog Spion could do much more than the version you have?
And does the version of the Esmog Spion you have come with three modes? One for light flicker, one for RF, and one for lower frequencies?
I also wanted to ask you about when you mention that "The LED's on the Esmog Spion are indicators, and are not accurate enough to compare to Building Biology Guidelines, also the LED's are theoretically not glowing in levels lower than 0.0100mW/m² =10µW/m² but it's excellent sound function should be a very good indicator, even when measuring low levels". Are they not accurate enough because the lights aren't sensitive below 10µW/m² ? It tells you in the manual that they aren't sensitive below 10µW/m² ?
Thank you so much!! I have been watching your videos on YouTube, by the way! I am enjoying watching them; they are both helpful and interesting. :-)
Mine has those 3 modes yes. It measures low frequencies electric (but not magnetic).
What the Esmog Spion measures cannot be used to compare to Building Biology Guidelines. It indicates high-mid-low levels. What it measures is kinda open to interpret, but if the orange LED's start to glow it is already pretty bad. But even when no LED's glow it could already be bad for a sensitive person, if the sound function makes a lot of noise.
The manual says:
Display in power density (RF): 10 - 1000 microwatt/m²
it's not clear to me how low the meter goes. But the sound function likely picks things up at very low levels.
Ah, I see. Thank you very much for the response! And have you ever tried using it to measure amateur/ham radio frequencies? Also, do you think the the extra price for the ability to measure light quality was worth it for you? Has that function been helpful for you?