Keysight Technologies 34401A

The following data is on the HP / Agilent / Keysight 34401A DMM. This venerable instrument was produced in vast numbers for decades. It is now discontinued.  Keysight produced more 34401A's than any other instrument in the history of the company.  Used units still perform admirably to this day. For new designs see the 6½ Digit 34461A or 34465A. These are fantastic replacements that follow in the great legacy of the 34401A.

The Keysight Technologies, Inc. 34401A multimeter gives you the performance you need for fast, accurate bench and system testing. The 34401A provides a combination of resolution, accuracy and speed that rivals DMMs costing many times more. 6½ digits of resolution, 0.0015% basic 24-hr dcV accuracy and 1,000 readings/s direct to GPIB assure you of results that are accurate, fast, and repeatable.

Key Features:

• 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