Power the AED 3 into the administrative mode by pressing and holding the power button.

Tap the information icon on the bottom left. The following screen will display the MAC address. NOTE: The AED will automatically switch to AED mode after a short time. If you are taking note of the MAC address, do so quickly or snap a photo of the screen.

The MAC Addresses for the AED 3 defibrillators typically start with 00:40:9D:##:##:## OR 00:04:F3:##:##:## depending on when they were manufactured.