Auto-destruct sequencer

An auto-destruct sequencer was a device aboard Romulan starships used to engage auto-destruct.

In 2366, Admiral Alidar Jarok's Romulan scout ship was equipped with an auto-destruct sequencer and when he left his ship to beam aboard the USS Enterprise (NCC-1701-D), he set the sequencer to make sure that the technology wouldn't fall into Federation hands.