It might be useful when you are new to the game but after playing for 3/4 hours it becomes useles. Maybe allow it to not only track keycards but also other things? Here are a few ideas.

*It can also track special items (like sprint boost).

*You can toogle between things you want to track. Special items, keycards or even 6 packs etc.

*You can track player activity. The triangulator can now be assigned to a personoid shortcut/the syringe or an oxygen station. You are notified if someone uses one of those things (1 time only maybe?).

*It's much more common and has a smaller chance of spawning in the dressing room because it's there 90% of the time.