Design meet IEC 1010 CATIII 600V safety requirment. 4000 counts, Auto range & multi-functions. Measurement for ACA, DCA, ACV, DCV, Ohms, Diode, Hz, Continuity beeper. Water resistance for the front panel. Data hold.Wide ranges ( 600 A, 400 A ) clamp on current measurement both for ACA & DCA. Overload protection circuit is provided for all range. LSI circuit provides high reliability and durability. Pocket & slim housing case, easy carryout. Compact & heavy duty ABS housing case.