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Details the functions of the top and bottom buttons and simultaneous button presses.
Describes how to enter and navigate the settings menu for initial setup.
Details setting personal data like gender, age, weight for HR max calculation.
Guide on how to start, pause, and reset the stopwatch for training duration.
Solutions for common problems like signal loss, interference, and unreadable displays.
Guide on replacing batteries in the watch and chest belt, and warranty service information.
General| Brand | Sigma |
|---|---|
| Model | Onyx Classic |
| Category | Heart Rate Monitor |
| Language | English |
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