24
Disclaimer
The device is designed exclusively for recreational sports enthusi-
asts. The Speedbox II may not be used to make precise diagnostic
measurements.
4 Important
information
Note
•
The Speedbox II cannot deliver accurate readings
during activities that involve abrupt acceleration
(jumps, turns, etc.) or sudden stops (such as racket
sports).
•
The different functions of the Speedbox II are also
explained in the operating instructions accompanying
your heart rate monitor. Pay particular attention to the
chapter "Speed and distances".