This Klein Tools CL390 AutoRanging Digital Clamp Meter is a versatile and reliable tool for measuring DC voltage, capacitance, duty cycle, and AC voltage up to 600V AC/DC. With its CAT III rating, it is capable of handling high voltage industrial applications. The CL390 features an auto-ranging function and a clamp design for easy and accurate measurements. In addition, this meter comes with input protection features and a digital display for easy reading. Whether you're a professional electrician or a DIY enthusiast, the Klein Tools CL390 is an ideal choice for your testing and measuring needs.