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| This is a GaussMaster EMF meter. It is a fairly sensitive unit that has a metered and audible output. You hold down a button to get a reading from .1 to 1 mG, or let the button up and get a reading of 1 to 10 mG. This meter is sensitive not only to AC fields, but to moving DC fields as well, especially on the .1 to 1 mG setting. I also have a "GaussMaster on Steroids" that I have re-wired to my liking. |