The Extech MA200 Compact Clamp Meter has a 2,000 count LCD display with high accuracy for current measurements. It has a 0.9" (23mm) jaw size that accommodates conductors up to 300MCM. This meter has a continuity beeper and a diode test as well as the data hold feature and the max hold feature. Also, the MA200 has overload protection for all ranges, over range and low battery indicators. This Extech meter has autoranging with an auto power off function. The Extech MA200 Compact Clamp Meter comes complete with test leads, a carrying case and two AAA batteries.