Resetting the Surface Pressure

The device automatically determines the surface pressure using the barometric altimeter. Large pressure changes, such as during a flight, can cause the device to automatically start a dive activity. You can reset the surface pressure if the device automatically starts a dive activity incorrectly.

1. Hold LIGHT until the device turns off.
2. Hold LIGHT to turn on the device.
3. When the product logo appears, hold MENU until you are prompted to reset the surface pressure.