HP 1631D Logic Analyzer with 10271A State Probes and 10272A State / Timing Probes. Upgraded from 1630 by Hewlett Packard this logic analyzer has the three 10271A State Probes and the two 10272A State/Timing Probes with it. Also included is a 1630A/D Manual that originally came with this logic analyzer. Power cord is also included. No other cords, cables, etc included. Sold as shown. It is missing one of the wire feet attachments to angle it up.