Arrest timer

CPR clock, 2-minute rhythm checks and a timed log of shocks and drugs.

The clock runs from the collapse. Tap each step as it happens.
Every 2 minutes a whistle and a buzz call the rhythm check — swap the person compressing.
At the end you get the timings for the debrief, ready to share. The screen stays on while it runs.

For drills, moulages and debriefs. Drug reminders are for teams trained in advanced life support. In a real emergency follow your protocol — the log is a memory aid, not a medical record. It stays on this device until you clear it.