MAIN OPERATING MODES
The Sportline Duo 1025 has 6 main operating modes: Time, Heart Rate/Exercise Timer, Chronograph, Alarm, Countdown Timer and Dual Time. Scroll through modes by PRESSING the MODE/SET (MODE) key. You may acquire Finger Touch Heart Rate by TOUCHING & HOLDING the Hear Rate Sensor in any operating mode.
| PRESS |
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| PRESS |
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TIME | MODE |
| HEART RATE/ | MODE | CHRONOGRAPH |
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| EXERCISE TIMER |
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| PRESS |
| PRESS |
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| MODE |
| MODE |
| DUAL TIME | COUNTDOWN | ALARM | ||
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| TIMER |
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