an instrument which can be used for measuring any one of several different electrical quantities, usually potential difference (voltage), current and resistance The user has to select the quantity to be measured, by selecting some switch settings
This is a piece of test equipment that is used by most IT Systems Support persons It can usually take reading of voltages, both AC and DC, current, again both AC and DC, and sometimes resistance values in ohms Oscilloscope - Measures timing and are generally less used these days because the frequencies used nowadays are very high and oscilloscopes designed to cater for them are very expensive
Also called a Volt-Ohm-Meter (VOM) A measuring instrument that can measure different ranges of voltage, current, and resistance A multimeter can have an analog needle indicator or a digital read out Every sound person should own one of these and be familiar with the different measurements that can be made with it