Magnetic Field Meter, 30 To 300Hz, 2.5%; Accuracy:2.5%; Meter Display Type:Lcd; No. Of Digits/Alpha:3.5; Resolution - High Range Max:1Μg; Resolution - Low Range Max:0.1Μg; Readings:Gauss, Tesla; External Height:140Mm Rohs Compliant: Yes |Triplett EMF20.