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An instrument designed to measure electrical quantities. A typical multimeter can measure alternating- and direct-current potential differences (voltages), current, and resistance, with several full-scale ranges provided for each quantity. Sometimes referred to as a volt-ohm meter (VOM), it is a logical development of the electrical meter, providing a general-purpose instrument. Many kinds of special-purpose multimeters are manufactured to meet the needs of such specialists as telephone engineers and automobile mechanics testing ignition circuits. See Ammeter, Current measurement, Ohmmeter, Resistance measurement, Voltage measurement, Voltmeter

Multimeters originated when all electrical measuring instruments used analog techniques. They were generally based on a moving-coil indicator, in which a pointer moves across a graduated scale. Accuracy was typically limited to about 2%, although models achieving 0.1% were available. Analog multimeters are still preferred for some applications. For most purposes, digital instruments are now used. In these, the measured value is presented as a row of numbers in a window. Inexpensive hand-held models perform at least as well as a good analog design. High-resolution multimeters have short-term errors as low as 0.1 part per million (ppm) and drift less than 5 ppm in one year. Many digital multimeters can be commanded by, and send their indications to, computers or control equipment.

McGraw-Hill Concise Encyclopedia of Physics. © 2002 by The McGraw-Hill Companies, Inc.


[′məl·tə‚mēd·ər or məl′tim·əd·ər]
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.


An instrument for measuring electricity (volts, amps, ohms) that is widely used and available in numerous shapes and sizes. An analog multimeter displays results by moving a pointer across a printed scale. The movement of the pointer helps to show gradual changes, but is less precise than its digital counterpart. A digital multimeter (DMM) displays the exact measurement on a numeric LCD or LED readout.
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References in periodicals archive ?
[USPRwire, Thu Aug 29 2019] Global Analog Multimeters Market: Introduction Analog multimeters are electronic devices that are used to measure electrical quantities such as resistance, voltage, current, signal power, and frequency.
[ClickPress, Thu Aug 29 2019] Global Analog Multimeters Market: Introduction Analog multimeters are electronic devices that are used to measure electrical quantities such as resistance, voltage, current, signal power, and frequency.
M2 PRESSWIRE-August 23, 2019-: Global Digital Multimeter Market by Product Type, Functionality, End-use Industry, and Region (2019-2024)
Using an included cable, the LED Test Tweezers can be used as tweezer probes for most multimeters.
The Model DMM7510 offers users a powerful combination of capabilities including higher measurement accuracy, a precision multimeter offers the flexibility to select resolution levels from 354 to 7V[pounds sterling] digits and DC accuracies typically only found in metrology-grade instrumentation--but at about half the price of those solutions.
* data logging for digital multimeters, oscilloscopes, data acquisition units, signal analyzers, power supplies, and power sensors;
The market for digital multimeters is more fragmented than other test instruments and features more competition between more brands.
Handheld scopes are not merely super-sized multimeters with enhanced graphical capabilities.
Fluke has introduced a new, easy-to-use true-RMS digital multimeter (DMM) designed to help utility electrical contractors and industrial electricians to quickly diagnose electrical problems.
This is accomplished by periodic "primary" calibration of the force laboratory's computing multimeters by the Quantum Electrical Metrology Division of the NIST Electronics and Electrical Engineering Laboratory.
These test leads are used with the ubiquitous Fluke-77 multimeters. It has a tip that is too large to probe many cannon plugs and test points.
FlukeView Forms V2.0, which supports most current versions of Windows, is available in a software-only package for those upgrading from previous versions, or with cable and adapters for immediate use with the Fluke 45 Bench Meter (includes serial cable); Fluke 187 and 189 digital multimeters; Fluke 87-IV and 89-IV digital multimeters; and 53-II and 54-II thermometers.