The Kewtech Digital Multifunction Electrical Tester KT64DL is a handheld device designed for measuring resistance and conducting continuity tests in electrical circuits. With a measurement category of CAT IV, this tester ensures accurate results while providing features such as auto power off, backlight, and a clamp for easy handling. The digital display makes it easy to read the results, making it a reliable tool for professionals in the electrical industry. It’s used, a friend left it behind when moving country a few years back. It will need to be calibrated.