Measures voltage, current, resistance and frequency. Tests continuity and diodes. Backlit LCD with 6,000 count display. Two voltage detection modes - non-contact or using a single test lead. Beep Jack warns when test leads are incorrectly inserted in current measurement terminals. Automatic and manual range selection. Relative offset mode to see changes in measurements. Data hold. Use optional USB / RS-232 interface DMSC-2U for direct-to-PC logging. Accessories included: (2)1.5V AAA batteries, bead temperature probe (DM-210A, DM-510A only, 400 DEG F/204 DEG C max), test lead, protective boot. Measures capacitance. Measures temperature using a type K thermocouple.