https://www.electricsense.com/13622/emf-meter-trifield-tf2/ The Trifield TF2 is a tri-mode EMF meter, which means it's like having 3 meters in one. It can measure magnetic fields, electric fields and radio frequency radiation.
AC Magnetic Mode
Frequency range 40Hz - 100KHz
Accuracy: ±4% @ 50/60 Hz
Maximum Range: 100.0 mG
Resolution: 0.1 mG
3 - axis
AC Electric Mode
Frequency Range: 40 Hz – 100 KHz
Accuracy: ±5% @ 50/60 Hz
Maximum Range: 1000 V/m
Resolution: 1 V/m
Radio Frequency Radiation Mode
Frequency Range: 20 MHz – 6 GHz
Accuracy: ±20% @ 1 GHz
Maximum Range: 19.999 mW/m2
Resolution*: 0.001 mW/m2
1 - axis
(*The Quickstart guide I received with the Trifield TF2 was incorrect. It said that the resolution in RF mode was 0.1 mW/m2 when in fact the resolution is 0.001 mW/m2. This error has been corrected in the Trifield documentation - but my video incorrectly says the resolution is 0.1mW/m2.)
The AC magnetic fields mode is 3-axis (gauss meter mode), which makes it easier to use because you don't have to turn the meter around. And it measures from AC magnetic fields between 0 to 100mG with good sensitivity and accuracy.
The unique feature of this EMF meter is that it has two magnetic and electric modes: weighted and non-weighted.
AC magnetic fields between 0-100mG. This is sufficiently sensitive to detect the background field almost anywhere (except for from civilization), while measuring up to very strong AC fields.
What I like about the Trifield TF2 EMF meter:
1. What I particularly like about this meter is its tri-mode functionality - it can measure these 3 different categories of EMFs – so its like having 3 meters in one.
2. It has good sensitivity. In MAG mode, particularly, it’s got very good sensitivity and accuracy.
3. Its easy to use. It has no complicated features. You can just take it out the box and use it
4. It has a sound function - this allows you to move the meter around without looking at the display too much and you can tell by the sound if the EMF levels are high.
5. It offers good functionality for the price.
1. My biggest complaint is the sensitivity in RF mode. It has a resolution of 0.001mW/m2. This is better than the previous version, the Trifield 100XE, but it’s still much less sensitive than the Cornet ED88Tplus for instance or the Acoustimeter.
2. In RF mode it only measures up to 6GHz. I would have liked it to have measured up to 8 GHz or more, given that with 5G etc the wireless industry is moving towards these higher frequencies.
3. I find the standard and weighted mode makes using the meter more complicated than it needs to be. I think most users will not benefit from this.
4. Having to go into the battery compartment in the back for the audio and the backlight is not very user friendly. I would have preferred to be able to access these buttons on the outside of the unit.