Application Note :: Keysight Technologies Compatibility and Differences: 34461A and 34401A Digital Multimeters.
The 34401A digital multimeter (DMM) is the industry standard. Its accuracy, ease of use, and lexibility have attracted users for more than two decades and its low cost of ownership and high quality have helped it to be one of the most successful products in the history of Keysight Technologies, Inc. Many engineers do not even evaluate other DMMs when they want to order one; they know the 34401A will work for them. It is an essential meter for bench and automated test applications.
The 34461A DMM is the next-generation 34401A. This new DMM was designed by the same group as the 34401A, with many of the same R&D engineers participating. With this continuity of experience and expertise, Keysight has made a DMM that is a virtual drop-in replacement for the 34401A while continuing to improve usability and measurement technology.
The 34461A is a compatible 34401A replacement with few exceptions. If you are looking to migrate from the 34401A to a 34461A and want to fully understand all differences between the two models, this application note will help you. Our goal is to help you migrate from your 34401A to a 34461A effortlessly.