The Extech EX310 is a compact, manually adjustable multimeter with an extra-large 2000 count display and integrated non-contact AC voltage detector (NCV). Measures AC/DC voltage and current, resistance, diodes/continuity. Includes a battery test function (1.5 volts and 9 volts). The protective rubber case protects the meter. UL listed Cat III - 600 volt safety rating. Includes test leads, 9 volt battery and tilt stand.