Technical Desktops

3421A Data Acquisition Unit

Handheld Selection:

Name: 3421A Data Acquisition Unit
Product Number: 3421A
Introduced: 1982
Division: Loveland
Original Price: $1285
Catalog Reference: 1983, page 44


The 3421A was an HP-IL interfaced data acquisition/control unit. It was developed for connection to HP-41 handheld calculator (and later to the HP-71B). The 3421A also offered an optional HP-IB interface ($220) for connection to HP computers, usually the HP-85. The 3421A also offered an optional battery for remote operation.

The 3421A scanned up to 30 channels measuring DC and AC voltage. Three options were available including: 10-channel multiplexer ($290), breadboard assembly ($59) and 8-bit digital I/O assembly ($290).

| Back | More Images | Product Documentation | Category Accessories |


©2004 - 2021 BGImages Australia - All Rights Reserved.

The HP Computer Museum and BGImages Australia are not affiliated with HP Inc. or with Hewlett Packard Enterprise. Hewlett Packard and the HP logo are trademarks of HP Inc and Hewlett Packard Enterprise. This website is intended solely for research and education purposes.

View our Privacy Statement Terms of Use