To manually pair an Arc to my existing account: Open your KATANA Safety App > Click the menu button (the three lines) in the top left of the screen > From the menu drop down, Select “My Devices” > Click the small "plus mark" in the my devices section at the top > Choose the product you wish to pair from the bottom, in this case "Katana Arc" > On the next screen press the red start pairing button at the bottom > Then choose your Bluetooth ID when it shows as an option. Once paired, "Bluetooth on" and "Paired" should both have green check marks next to them.

When finished: click "Done" in the Top right corner and then "Home"  from the menu drop down to return to the home screen.