This Certified Refurbished product is tested and certified to look and work like new. The refurbishing process includes functionality testing, basic cleaning, inspection, and repackaging. The product ships with all relevant accessories, a minimum 90-day warranty, and may arrive in a generic box. Only select sellers who maintain a high performance bar may offer Certified Refurbished products on Amazon.com WIDE RANGE of tests for Voltage, Current, Resistance, Continuity, Capacitance, Frequency; Tests Diodes Transistors, Temperature PROFESSIONAL LEVEL features include Auto-Ranging capability, and True RMS for measuring both AC Current and Voltage EASE OF USE: Convenient features like Data Hold, Large LCD Backlit Screen, Auto Shut-off and Hanging Magnet, and Kickstand make taking and recording measurements easier than ever before IDEAL FOR COMMERCIAL settings where it can handle the demands of a long workday, from the durable exterior to the wide range of heavy-duty capabilities. Built-in F400mA/600V and F10A/600V explosion-proof ceramic fuse tubes; Double Protection, more secure and reliable; The fuses can protect the multimeter effectively; Overload protection on all ranges.