Viewing the Surface Interval Widget

The widget displays your surface interval time, tissue load, and central nervous system (CNS) oxygen toxicity percentage.

1. From the watch face, press UP or DOWN to view the surface interval widget.
2. Press START to view your oxygen toxicity units (OTU) and CNS percentage.

   NOTE: The OTU accumulated during a dive expire after 24 hours.

3. Press DOWN to view your tissue load details.