The Extech EX310 is a compact, manual-ranging multimeter featuring a built-in non-contact AC voltage detector (100–600V AC) with red LED and audible beeper. Designed for electricians and DIY users, it offers 2000-count resolution, 0.5% basic accuracy, and large 1” digits for easy reading. Includes test leads, holster, stand, and batteries — ideal for quick electrical checks and basic troubleshooting.