A real innovative design, this meter can tell you the total field strength, and the field strength with power line fields ignored. Using some fancy digital signal processing, you can now know whether a field is from man-made sources or not just by using this meter. Plus a zillion other features for harmonic analysis, max hold, bargraph readout, variable backlight, the list goes on and on... I think every investigator needs one of these in their toolbox!
Order a DSP-523 from LessEMF or read more about the meter at Magnii.com.