These products are no longer in full production. For information or service on these products you will need to contact us (1-800-441-9910).
| Obsolete Product | Produced | Suggested Replacement |
| Signature 1000 | 1984-1990 | Signature 1000RX |
| Signature 1000M | 1987-2004 | Signature 1000RX |
| Signature 2000 | 1985-2004 | Signature 1000RX |
| Signature 1000R+ | 1990-2004 | Signature 1100R+ |
| Signature 5000 | 1986-2001 | easy-wire CR |
| Signature 5000A | 1988-2001 | Call for availability |
| Signature 5000 Keypad | 1986-2001 | Call for availability |
| Signature 1000H | 1988-1992 | 1000HN |
| Signature 2000H | 1988-1992 | Signature 1100H+ with one add-on box |
| Signature SCSI Tester | 1993-1999 | Signature Touch 1 with a SCSI Testing Adapter |
| SCSI Testing Adapter | 1997-2007 | None |
