Electrical Ohmmeters

GAO’s electrical ohmmeters are devices used to measure electrical resistance. Resistance is the opposition that a material offers to the flow of electric current, and is measured in units called ohms. GAO Tek’s ohmmeters work by passing a small current through the circuit or component being tested and measuring the voltage drop across it. By knowing the current being passed and the voltage drop, our electrical ohmmeter can calculate the resistance of the component using Ohm’s law (R=V/I).

GAO’s electrical ohmmeters are composed of power source, measuring instrument (usually a galvanometer), and resistor.

The alternative names of ohmmeters include resistance meters, impedance testers, resistance measuring devices, ohm gauges, electrical resistance meters, impedance meters, ohmic instruments, resistor testers, conductor resistance meters, electrical impedance meters, ohmic testers, conductance meters, resistance measurement tools, electric resistance gauges, impedance analyzers, ohm detectors, conductivity meters, resistance testing equipment, impedance checking devices, and ohm readers.

Here are GAO Tek’s Ohmmeters, arranged based on their respective features, including automatic calibration, benchtop, dual range, four terminal measurement, handheld, high precision, micro, milli, data logging, rugged, and wireless.

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GAO Tek’s electrical ohmmeters have the following functions:

Testing Resistance - GAO's ohmmeters are used to test the resistance of resistors, capacitors, and coils. By measuring the resistance of these components, technicians can determine if they are functioning properly or if they need to be replaced.
Continuity Testing - Our ohmmeters can also be used to test for continuity in a circuit. Continuity is the ability of an electrical circuit to allow current to flow from one end to the other without interruption. By measuring the resistance of a circuit with an ohmmeter, technicians can determine if the circuit is continuous or if there is a break in the circuit.
Troubleshooting - GAO Tek’s ohmmeters can be used to troubleshoot electrical circuits and components. By measuring the resistance of various parts of a circuit, technicians can isolate and identify faulty components that may be causing problems.
Quality Control - Our ohmmeters are also used in quality control processes to ensure that electrical components meet certain specifications and standards.

GAO Tek’s electrical ohmmeters are rugged, versatile and precision measurement instruments. They comply with applicable industry standards such as ANSI/IEEE C57.13.1, NFPA 70E, ASTM D257 and MIL-PRF-55342.

Our electrical ohmmeters help our customers comply with relevant U.S. government regulations such as:

Occupational Safety and Health Administration (OSHA) regulations
National Institute of Standards and Technology (NIST) regulations
Federal Communications Commission (FCC) regulations
Consumer Product Safety Commission (CPSC) regulations

Our electrical ohmmeters help our clients in complying with relevant Canadian government regulations such as:

Canadian Electrical Code (CEC)
Measurement Canada
Industry Canada
Canadian Environmental Protection Act (CEPA)

Our electrical ohmmeters have the following applications:

Testing electrical circuits - GAO Tek’s ohmmeters are used to test the continuity of electrical circuits and to identify faults or breaks in wiring.
Checking the resistance of components - GAO’s ohmmeters can be used to measure the resistance of individual components such as resistors, capacitors, and inductors.
Testing the insulation of cables and wires - Our ohmmeters can be used to test the insulation resistance of cables and wires to identify potential faults or breaks in the insulation.
Quality control testing - GAO Tek’s ohmmeters are used in quality control testing to ensure that electronic components and devices meet certain resistance specifications.
Laboratory research - Our ohmmeters are used in laboratory research to measure electrical resistance in a variety of materials and to investigate the properties of conductive and non-conductive materials.
Industrial manufacturing - GAO's ohmmeters are used in industrial manufacturing to ensure that electrical components and systems meet certain resistance specifications and quality standards.

Our electrical ohmmeters can be shipped overnight within the continental U.S. and Canada, and can be shipped globally.

Ohmmeters Resources and Guides

FAQ on Ohmmeters under the Category Electrical Testers

How To Choose an Ohm meter

Components of an Ohmmeter

Operation, Maintenance & Calibration of an Ohmmeter

Customers of Ohmmeters in the U.S. and Canada

Applications of Ohmmeters in the Utilities Industry

Applications of Ohmmeters in the Food Processing and Manufacturing Industry

Applications of Ohmmeters in the Mining and Extractive Industry

Applications of Ohmmeters in the Telecommunications Industry

Applications of Ohmmeters in Electronics Manufacturing Industry

Applications of Ohmmeters in the Textile Industry

Applications of Ohmmeters in the Rail Transportation Industry

Applications of Ohmmeters in the Medical Equipment Manufacturing Industry

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Our products are in stock and can be shipped overnight to Continental U.S. and Canada from one of our local warehouses. If you have any questions, our technical experts can help you. Please fill out this form or email us.

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