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A replacement for this product is available:

Starting From US$ 1,436

Typical Configuration  

Typical Configuration

34401A Digital multimeter, 6.5 digit

  • 34401A-0B0 Download the product manual from the Keysight website
  • 34401A-120 120-volt ac line selection
  • R-51B-001-Z Return to Keysight Warranty - 3 years


Prices for: United States

* Prices are subject to change without notice. Prices shown are Manufacturer's Suggested Retail Prices (MSRP). Prices shown are exclusive of taxes.

Key Features & Specifications

Notice for European Union Customers: This product is not updated to EU RoHS compliance, therefore Keysight will only continue to sell this product to EU member states until 31 December 2016. Please contact your local sales representative for questions and recommended alternative product(s).

Measurement Capability

  • 6½ digit resolution
  • 10 measurement functions: DC/AC voltage, DC/AC current, 2- and 4-wire resistance, diode, continuity, frequency, period
  • Basic accuracy: 0.0035% DC, 0.06% AC
  • 1000 V max voltage input, 3 A max current input

System Capability


The 34401A DMM will be discontinued December 1, 2016 and is replaced by next-generation 34461A Truevolt Series DMMs. Committed to providing world-class customer support, Keysight will continue to support these products for the standard period of 5 years. For more information on the discontinuance, please visit

The 34461A is Keysight’s next-generation 34401A DMM providing the same uncompromising performance for system and benchtop testing along with new capabilities you need:

  • Graphical display to accelerate your work
  • Truevolt measurement performance and accessibility (LAN, USB, GPIB)
  • 100% drop-in replacement with 34401A SCPI compatibility 

Learn more about migrating to the next industry-standard DMM, 34461A 6½ digit Truevolt DMM. 

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