Magnetic Electric Meters ME 3830B Meter-16 Hertz to 100 000 Hertz Rated as our BEST selling Beginner or Entry Level EMF Meter Magnetic Electric Meters ME 3830B Meter-5 Hertz to 100 000 Hertz The 3830B offers all the features of the 3030B plus a boosted frequency range. Designed to meet Bau-Biologie EMF measurement performance requirements Dual Function AC Gauss Meter / Electric Field Detector / Magnetic Field Detector/ AC Tesla Meter / Multipurpose EMF Analyzer