The multi-meter is a compact electronic device (usually hand-held) that measures AC and DC voltage, amperes (current) and ohms (resistance).
The device goes by several commonly used names such as volt-ohm-meter (VOM), multi-tester, multi-meter and others.
Multi-meter Is a Must Have Tool
It is an essential tool for home repair projects involving electrical work at the branch electrical circuit level or with HVAC (heating, ventilation & air conditioning) repair.
This display on this electronic device may be analog or digital. The analog version uses a calibrated meter with a needle. The digital version is more common and used as a fully electronic display. Electronic versions can often measure DCV, ACV, DCA, ACA, resistance, capacitance, frequency, temperature, duty cycle, transistor, diode, and continuity, and other readings.
The device has two electrical wire leads, red and black, and a dial to select the setting/mode. Various tests can be run and measurements made depending upon the setting. Electronic versions of the multitester are called a DMM (digital multi-meter) or DVOM (digital volt-ohm-meter).
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Also Known As:
Volt Meter, Multi-meter, Multi-tester, Volt-Ohm-Meter, VOM, Continuity Tester, DMM, DVOM