Keysight Legacy Instruments

Some of your favorite instruments have been discontinued, but there's a new generation of products to replace them.

A New Era Awaits

In a move to usher in a new generation of electronic measurement solutions, Keysight has announced the discontinuance of some of its most popular instruments. These products have been replaced by upgraded solutions providing you with better value, while guaranteeing the same quality and performance you've come to rely on.


New, and Very Similar

It’s hard to say goodbye. Especially to trusted workhorses like the 34401A, which has a celebrated history spanning three decades. Keysight has replaced them with modern, upgraded instruments that can provide you not only better value, but greater insight into your measurements. And because the new instruments were crafted by the same team of engineers who originally designed the legacy products, you are guaranteed the same high product quality and confidence. Better yet, they’ve made it easy for you to migrate over to the new products. As your Keysight authorized distributor, we are here to help you — whether it's to make one last purchase of your current equipment or to get a quote on the next generation of test and measurement instruments.

Discontinued Description Next Generation Replacement
34401A Digital multimeter, 6.5 digit 34461A
34410A Digital multimeter, 6.5 digit 34465A
34411A Digital multimeter/Digitizer, 6.5 digit 34465A
L4411A Digital multimeter, 6.5 digit 1U-LXI 34465A with high speed option (no 1U replacement)
33220A Function/Arbitrary Waveform Generator, 20 MHz 33511B
33250A Function/Arbitrary Waveform Generator, 80 MHz 33611A
53131A Universal Counter, 225 MHz, 10 digit/s, 500 ps. GPIB, RS232 53220A
53132A Universal Counter, 225 MHz, 12 digit/s, 150 ps. GPIB, RS232 53220A, 53230A
53181A RF Counter, 225 MHz, 10 digit/s. GPIB, RS232 53210A
35670A Signal Analyzer, 2 or 4 Channel Dyn. No replacement
35670U Upgrade kits for 35670A No replacement
U8903A Audio Analyzer, 10Hz to 100 kHz U8903B
U3401A 4½ Digit Benchtop DMM Last order date: 11/30/17. Keysight support through 2022.
Recommended replacement: 34450A 5.5 Digit Bench DMM
U3402A 5½ Digit Benchtop DMM

Download Keysight Legacy Migration-Related Literature

To aid your decisions, Keysight has prepared Legacy Equipment Migration Guides.

Keysight Legacy DMM, Function/Waveform Generators, Universal Counters/Timers Flyer
Compatibility and Differences: 34461A and 34401A Digital Multimeters
RF & Universal Frequency Counter/Timers Migration, Comparison, and Differences Guide
Trueform Series Waveform Generators Migration Guide

If you need technical answers about Keysight's next generation replacement products, please contact us.