I see no entry in the manual or otherwise, what the frequency range is of the electric field sensor in the emf-390? The magnetic sensor is said to be up to 120 or 150hz in v2, depending on what post you read, the older v1 apparently went up to 400hz. But how high up does the electric field sensor go (in the current v2)?
Readings is just V/M how could we read the frequency and the charge of the electric field if positive or negative, and if can read less than 1 v/m as per air ion field detector