Keysight Technologies has decided to discontinue the production of the 34401A digital multimeters (DMMs) on December 1, 2016. The last day to place an order for these products is November 30, 2016. Committed to providing world-class customer support, Keysight will continue to support these products for the standard period of 5 years. The replacement models for the 34401A are Keysight’s next-generation Truevolt Series DMMs.

The 34461A Truevolt DMM is a virtual drop-in replacement for the 34401A and offers improved usability and measurement technology. The Truevolt Series DMM’s graphic capabilities such as trend and histogram charts offer more insights quickly.

View 34461A & 34401A DMM Comparison Guide (compatibility & differences)

Comparison of Key Features

Feature improvements 34401A 34460A 34461A
(direct replacement )
Resolution (digits)
DCV accuracy 40 ppm 75 ppm 35 ppm
Reading rate maximum 1,000/s 300/s 1,000/s
Reading memory 512 reading 1,000 readings 10,000 readings
DC current 100 µA to 3 A 100 µA to 3 A 100 µA to 10 A
Capacitance, temperature              N/A Standard Standard
Display 1-line, VFD 2-line, color LCD 2-line, color LCD
I/O GPIB, RS232                     USB, OPT LAN & GPIB   USB, LAN, OPT GPIB

Learn about Keysight new digital multimeter