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A digital multimeter, DMM is a test instrument, which is very essential to measure electrical values including voltage, current, and resistance, although modern DMMs often make many more measurements. If you are getting started with DMM's usage, this book may suit you. This book will show you how to use a digital multimeter to diagnose circuits, learn about other people's electronic designs, and even test a battery. Hence the 'multi'-'meter' (multiple measurements) names. Furthermore, in this tutorial, we will cover measuring voltage, current, resistance, and continuity