Replacing the Battery

The device uses one CR2025 battery.

1. Remove the device from the band.

   

2. Use a small Phillips screwdriver to loosen the four screws on the back of the device.
3. Remove the rear case and battery.

   

4. Insert the new battery with the positive side facing the rear case.
5. Verify the gasket is not damaged and that it is fully seated in the front case.
6. Replace the rear case.
7. Tighten the four screws equally and firmly.
8. Insert the device into the flexible silicone band by stretching the band material around the device.

   The device key must be aligned with the key insert on the side of the band.