RS Pro multi-field EMF meter IEMF-190 is a great value basic instrument for measuring high frequency electromagnetic fields (RF) in a frequency range of 50 MHz - 3.5 GHz and low frequency electric and magnetic fields (EMF) at 50-60 Hz. IEMF-190 is equipped with three individual aerial sensors to measure EMFs. The overload indications can be displayed simultaneously on three axes (X, Y, Z): z Range 20\/200\/2000 mG, 2\/20\/200 µT, z Resolution 0.02\/0.1\/1 mG or 0.02\/0.1\/1 µT, z Frequency response 50\/60 Hz, z Sensor Triple Axis (X, Y, Z), z Accuracy ± (15%+100 dgt).Magnetic Range = 0.02 - 200 μT, 0.02 - 2000 mGMaximum Magnetic Measurement = 200 μT, 2000 mGMinimum Magnetic Measurement = 0.02 μT, 0.02 mGBest Accuracy = ±15 % + 100 DigitResolution = 0.01 μT, 0.01 mGFrequency Range = Maximum of 60HzOperating Units = Gauss, TeslaInterface Type = USB Mini-BMaximum Operating Temperature = +40°CMinimum Operating Temperature = +5°C