![](/images/new-backgrounds/1302666/3026665x1.webp)
TABLE OF CONTENTS
OPERATING THE WATCH | 17 |
OPERATING HEART RATE/CHRONOGRAPH MODE | |
HEART RATE SUB MODES | 19 |
CHRONOGRAPH MEMORY | 20 |
OPERATING THE COUNTDOWN TIMER | 21 |
VIEWING THE EL BACKLIGHT SYSTEM | 21 |
POWER SAVE MODE | 21 |
POWER DOWN MODE | 21 |
RANGES & SPECIFICATIONS | 22 |
REPLACING THE WATCH BATTERY | 23 |
REPLACING THE CHEST TRANSMITTER BATTERY | 24 |
BATTERY SAFETY INFORMATION | 25 |
TROUBLE SHOOTING | 26 |
FCC COMPLIANCE | 27 |
WARRANTY | 28 |
Duo 1010