Basic principle: Readings exhibit the effective voltage based upon the typical worth of samples above a complete range of periods of the elemental frequencyIntellaSet technology quickly and intelligently adjusts numerical readout determined by the measured sign Gi?i m?i (bao g?m t?t c? gi?i nào có s? thay ??i, c?p nh?t m?i ho?c ?i?u ch?nh)And, w