MS84 instrument is a kind of 3 1/2 digi digital multimeter with stable performance, low power consumption, high reliability, multifunction and overload protection; Can measure AC / DC voltage, diode forward voltage drop and curcuit on / off, triode, temperature, capacitance, frequency, etc; Integrated circuit, A/D converter as core, with display lighting function, let you read measuring result easily in the dark; Great tool for electronic lovers.