The Marksman Digital Multimeter Tester is a versatile measuring instrument designed to assess various electrical quantities, including voltage, current, and resistance. Featuring an easy-to-read digital display, it is ideal for testing car batteries, mains sockets, and electrical circuits. Suitable for mechanics, electricians, engineers, and DIY enthusiasts, this multimeter can also test decibel ratios, diodes, transistors, and continuity, making it an essential tool for a wide range of electrical applications.