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 TEST A WIDE RANGE of measurements including Voltage, AC Current, Resistance, Continuity, Capacitance, Frequency, and Temperature, Tests Diodes PROFESSIONAL LEVEL features includes True RMS for accurate AC Current and Voltage readings. Also includes Auto-Ranging for faster and more accurate results CONVENIENT FEATURES included Data Hold and a Large, LCD Backlit Screen, and Extra Large Clamp 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 LARGE DIGITAL DISPLAY with backlit LCD for visibility in dimly light areas