Before getting into multimeter reviews and comparisons of the best multimeters, let’s take a step back and put a novice spin on multimeters in general. A multimeter, also known as a multitester, and volt-ohm meter (VOM) is used to measure voltage, current, and resistance in an electrical circuit. There are two basic types: analog and digital. An analog multimeter uses a moving pointer to indicate readings. Digital multimeters use a digital screen to display readings. Some units may offer a graph of the readings as well. At one time analog multimeters are more common in professional and industrial settings and digital multimeters were more common for household use. Today, digital multimeters rule the industry.