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Keysight offers three performance grades of benchtop digital multimeters (DMM) — Essential, Advanced, and Pro, as well as modular and portable models.
Explore our wide range of digital multimeters for education and metrology labs
Save rack space with benchtop capabilities in a compact form factor
Make trustworthy measurements in harsh working environments
Keysight benchtop digital multimeters enable you to characterize and debug devices, perform design validation, monitor key interfaces of subsystems during design, and ensure your products are properly tested to meet specifications. They are offered in four capability classes across three performance grades. Essential, our entry-level DMM, includes the DM5-class, providing 5.5 digits of resolution. Advanced includes the DM6- and DM7-class, extending up to 7.5 digits of resolution. Pro includes the DM8-class, delivering 8.5 digits of resolution and increased sampling rate. Portable includes the DM4-class, offering convenience in the palm of your hand. A comprehensive library of digital multimeter resources are available to help you find the performance grade and class best suited to your lab.
Starting from
Digits of resolution
Starting from
Digits of resolution
Starting from
Digits of resolutionKeysight modular digital multimeters offer the power of a benchtop DMM in a compact, flexible form factor, saving valuable rack space. Our top modular DMMs deliver superior DCV accuracy and faster reading rates than our Advanced models, all within high-density PXI / PXIe modules. With four models ranging from 21 ppm to 90 ppm 1-year DCV accuracy, select the modular digital multimeter that is right for your application.
Keysight DM4-class portable DMMs include the U1200 Handheld DMMs. Portable DMMs are designed to withstand harsh working conditions, improve safety, and offer convenience in the palm of your hand, whether you are troubleshooting electronics or performing machinery installation and maintenance. Equipped with smart features like an integrated frequency counter and overvoltage protection, our portable DMMs help you quickly detect issues and obtain accurate measurements in the field. Explore our most popular models to find the one that is best for your application.
Keysight benchtop digital multimeters enable you to characterize and debug devices, perform design validation, monitor key interfaces of subsystems during design, and ensure your products are properly tested to meet specifications. They are offered in four capability classes across three performance grades. Essential, our entry-level DMM, includes the DM5-class, providing 5.5 digits of resolution. Advanced includes the DM6- and DM7-class, extending up to 7.5 digits of resolution. Pro includes the DM8-class, delivering 8.5 digits of resolution and increased sampling rate. Portable includes the DM4-class, offering convenience in the palm of your hand. A comprehensive library of digital multimeter resources are available to help you find the performance grade and class best suited to your lab.
Starting from
Digits of resolution
Starting from
Digits of resolution
Starting from
Digits of resolutionKeysight modular digital multimeters offer the power of a benchtop DMM in a compact, flexible form factor, saving valuable rack space. Our top modular DMMs deliver superior DCV accuracy and faster reading rates than our Advanced models, all within high-density PXI / PXIe modules. With four models ranging from 21 ppm to 90 ppm 1-year DCV accuracy, select the modular digital multimeter that is right for your application.
Keysight DM4-class portable DMMs include the U1200 Handheld DMMs. Portable DMMs are designed to withstand harsh working conditions, improve safety, and offer convenience in the palm of your hand, whether you are troubleshooting electronics or performing machinery installation and maintenance. Equipped with smart features like an integrated frequency counter and overvoltage protection, our portable DMMs help you quickly detect issues and obtain accurate measurements in the field. Explore our most popular models to find the one that is best for your application.
Choose from a wide variety of digital multimeter lab management and instrument control software or accessories like test leads, temperature probes, adapters, and more.
Consumer electronics
Make accurate resistance measurements by removing the effects of cable resistance.
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Design and test battery systems with precise measurements across wide temperature ranges and multiple channels.
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Make multichannel current measurements during the product design stage using a DAQ system.
Semiconductor
Characterize an active electronic component such as a diode by performing an IV curve measurement.
Automotive
Set up multi-point temperature measurements based on design complexity.
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A multimeter refers to a measuring meter that makes multiple types of measurements, such as alternating current (AC) or direct current (DC) voltage, AC or DC current, resistance, temperature, capacitance, and more parameters. A modern digital multimeter uses digital and logic technology to miniaturize and enable many features in its internal system. With digital technology, digital multimeters can have graphical displays, perform data logging and signal digitizing capabilities, programmability, and communicate with external devices.
A digital multimeter (DMM) is a fundamental tool for electrical testing and troubleshooting, providing accurate measurement of key electrical parameters to help engineers and technicians verify performance, pinpoint faults, and assess circuit behavior. Most digital multimeters support the following core measurements:
Higher performance DMMs offer improved resolution, accuracy, and faster measurement speeds, making them suitable for bench, production, and field use. Whether performing maintenance checks in the field or taking precise measurements in the lab, a DMM provides the flexibility to measure the parameters needed for everyday electrical and electronic troubleshooting.
The best digital multimeter depends on the application's requirements for accuracy, reliability, safety, and operating environment. For laboratory, design validation, and automated test applications, engineers often prioritize measurement accuracy, long-term stability, and automation capabilities. For industrial and field environments, durability, safety ratings, and reliability may be equally important. When comparing DMMs, consider factors such as accuracy specifications, resolution, safety ratings, connectivity options, and long-term performance to determine the best fit for your application.
A precision digital multimeter should be selected based on the accuracy, resolution, measurement speed, and connectivity required by the application. For automated test systems, also consider whether the DMM supports LAN, USB, GPIB, or LXI interfaces for easy system integration. Higher resolution DMMs, such as 6.5-, 7.5-, or 8.5-digit models, are typically chosen based on the level of measurement precision required. The best choice balances measurement performance, test throughput, and automation requirements.
The safety rating you need depends on where the digital multimeter will be used and the voltage environment being measured. Measurement category ratings, such as CAT II, CAT III, and CAT IV, help define the electrical environments where a DMM can be used safely. CAT ratings matter because electrical systems can expose a meter to high-energy transients or overvoltage events. Choosing a DMM with the appropriate rating helps protect both the user and the instrument. For benchtop digital multimeters used in labs, design validation, manufacturing, and automated test systems, consider the maximum input ratings, input protection, fuse protection, test lead ratings, and measurement environment. Always select a DMM and accessories that are rated for the voltage level and application where they will be used.
Common digital multimeter measurement errors include using the wrong function or input terminal, selecting the wrong range, using test leads that are not properly rated, measuring outside the instrument’s specified limits, or overlooking sources of noise and signal interference. To reduce measurement errors, verify the DMM setup before connecting to the device under test, confirm the expected signal range, use properly rated leads and accessories, and choose a DMM with the accuracy, resolution, speed, and stability required for the measurement. For precision benchtop measurements, users should also consider warm-up time, calibration status, cabling, grounding, triggering, and environmental conditions that can affect measurement repeatability.
The required resolution and reading speed depend on the accuracy and throughput requirements of the application. Higher resolution measurements generally provide greater precision but may take longer to complete, while faster reading speeds can help reduce test time and increase throughput. The ideal DMM balances measurement precision, speed, and repeatability to meet production test requirements.