Multimeters (volt/ohm meter or VOM) for electronic measuring that combines several functions in one unit. A standard multimeter may include features such as the ability to measure voltage, current and resistance. There are two categories of multimeters, analogue multimeters and digital multimeters DMM.)
Multimeters for basic fault finding and field service work and bench instruments for taking measurements with very high degree of accuracy. Need to troubleshoot electrical problems in a wide array of industrial and household devices such as batteries, motor controls, appliances, power supplies, and wiring systems.