The Display Monitor

The Display Monitor (/display) is the student-facing screen. It's designed to look and behave like a real clinical monitor — minimal interface, big numbers, live waveforms.

The Layout

Top bar:

• Silence button (top-left) — silences the currently sounding audio alarm without changing any thresholds.
• Clock — 24-hour format.
• Battery indicator — percentage with charge icon.

Main vitals grid:

• ECG — large waveform trace with bpm value, labeled "Lead II"
• SpO2 % — value plus pleth waveform
• SpCO % — carboxyhemoglobin (visible when set above 0)
• ETCO2 (mmHg) — value plus capnography waveform
• RR — respiratory rate
• BP mmHg (Sys/Dia) — with (MAP) shown in parentheses, plus NIBP and AUTO buttons
• Temp °F
• Glucose mg/dL

Bottom of screen:

• AED Trainer panel (only visible when enabled in Display Controls)
• Show/Hide Viewer QR Code button

What Each Vital Is Showing

Every value on the Display Monitor reflects what the Controller has Applied. Vitals that are set to Not Visible (NV) on the Controller do not appear — the cell is blank. This lets you simulate a monitor without a cuff attached, an SpO2 probe not yet placed, etc.

Alarms on the Display

• Yellow border/value = Warning alarm (vital out of range for 10+ seconds)
• Red border/value/outline = Crisis alarm (vital out of range for 5+ seconds)
• Dashes (---) on a vital = INOP — a sensor disconnect is simulated. See the Alarms & Battery article.

The Silence Button

Pressing Silence on the Display Monitor silences the currently sounding audio alarm temporarily. The next new alarm will still beep. This mirrors how a real monitor's silence button works — it's a temporary quiet, not a mute of all future alerts.

To mute all audio for the entire session, use the Audio tab in the Alarms & Battery modal on the Controller.

The DEVICE OFF State

When the battery hits 0%, the entire monitor display shuts off and shows: "DEVICE OFF — Battery depleted — controller must add charge to restore display"

The screen stays dark until the Controller uses the Battery tab (in Alarms & Battery) to charge the battery above 0%. This is a deliberate teaching scenario — students must recognize a dead monitor and troubleshoot.

Show/Hide Viewer QR Code

The Viewer QR code is hidden by default so it doesn't clutter the monitor during a simulation. A button at the bottom of the Display reveals it. When shown, anyone who scans it joins as a Viewer (read-only). Press again to hide it.

This is the fastest way to onboard a classroom: project the monitor on a TV, tap the button, students scan, done.

The label beneath the QR code reads: "Scan to view this monitor on your device. Anyone scanning this code joins as a Viewer (read-only)."

AED Trainer Panel

Only visible when AED Trainer is enabled via Display Controls on the Controller. See the AED Trainer article for the full walkthrough.