This Greenlee DM-860A Digital Multimeter is a fully featured industrial digital multimeter, and the latest addition to the Greenlee lineup. Safety, performance, and the versatility of this device set it ahead of the rest. Featuring the highest level of safety with a UL Category IV 1000V rating, your measurements are guaranteed to be safe. To avoid damage to the meter, a built in Beep-Jack visual and audio warning system help to prevent improper test lead connections and blown fuses. The 50,000 count backlit display is easy to read, and allows for superior accuracy and functionality. Built in AC/DC True RMS and VFD (Variable Frequency Drive) voltage and frequency functions allow for precise readings on electrically noisy circuits. Auto-ranging function provides convenient operation and introduces time savings. An optional USB cable, the DMSC-9U and its