Update / Upgrade guide for FSA PowerBox power meters

All FSA PowerBox power meters are fully-fledged power meters and measure the total power output of both legs.

The basic functions are:

• Power
• Cadence (no additional external sensor needed)

The firmware Update is a free process that allows you to have always the latest firmware installed on your POWERBOX.

The upgrades offer you the chance to buy additional functions:

• Bluetooth Connectivity
• Left/Right leg Power Balance
• Pedal Smoothness