Using an Optional Bike Cadence SensorYou can use a compatible bike cadence sensor to send data toyour device.• Pair the sensor with your device (Pairing ANT+ Sensors).• Update your fitness user profile information (Setting Up YourUser Profile).• Go for a ride (Going for a Ride).Device InformationViewing Device InformationYou can view the unit ID, software version, and licenseagreement.1 Hold MENU.2 Select Settings > System > About.Device CareNOTICEDo not use a sharp object to clean the device.Avoid chemical cleaners, solvents, and insect repellents thatcan damage plastic components and finishes.Thoroughly rinse the device with fresh water after exposure tochlorine, salt water, sunscreen, cosmetics, alcohol, or otherharsh chemicals. Prolonged exposure to these substances candamage the case.Avoid pressing the keys under water.Avoid extreme shock and harsh treatment, because it candegrade the life of the product.Do not store the device where prolonged exposure to extremetemperatures can occur, because it can cause permanentdamage.Cleaning the Device1 Wipe the device using a cloth dampened with a milddetergent solution.2 Wipe it dry.SpecificationsBattery type 500 mAh Lithium-ion batteryBattery life Up to 5 weeksWater rating 5 ATM*Operating temperature range From -20º to 50ºC (from -4º to 122ºF)Radio frequency/protocol 2.4 GHz ANT+ wireless technologyBluetooth Smart device*The device withstands pressure equivalent to a depth of50 meters. For more information, go to www.garmin.com/waterrating.Battery InformationThe actual battery life depends on how much you use GPS,device sensors, optional wireless sensors, and the backlight.Battery Life Mode16 hours Normal GPS mode50 hours UltraTrac GPS mode with one-minute polling intervalUp to 5 weeks Watch modeCaring for the Heart Rate MonitorNOTICEYou must unsnap and remove the module before cleaning thestrap.A build up of sweat and salt on the strap can decrease theability of the heart rate monitor to report accurate data.• Go to www.garmin.com/HRMcare for detailed washinginstructions.• Rinse the strap after every use.• Machine wash the strap after every seven uses.• Do not put the strap in a dryer.• When drying the strap, hang it up or lay it flat.• To prolong the life of your heart rate monitor, unsnap themodule when not in use.HRM-Run SpecificationsBattery type User-replaceable CR2032, 3 voltsBattery life 1 year (1 hour per day)Water rating 3 ATM*NOTE: This product does not transmit heartrate data while swimming.Operating temperaturerangeFrom -20° to 60°C (from -4° to 140°F)Radio frequency/protocol2.4 GHz ANT+ wireless communicationsprotocol*The device withstands pressure equivalent to a depth of30 meters. For more information, go to www.garmin.com/waterrating.User Replaceable BatteriesWARNINGDo not use a sharp object to remove batteries.Keep the battery away from children.Never put batteries in mouth. If swallowed, contact yourphysician or local poison control center.Replaceable coin cell batteries may contain perchloratematerial. Special handling may apply. Seewww.dtsc.ca.gov.hazardouswaste/perchlorate.CAUTIONContact your local waste disposal department to properlyrecycle the batteries.Replacing the Heart Rate Monitor Battery1 Use a small Phillips screwdriver to remove the four screwson the back of the module.2 Remove the cover and battery.3 Wait 30 seconds.4 Insert the new battery with the positive side facing up.NOTE: Do not damage or lose the O-ring gasket.5 Replace the back cover and the four screws.NOTE: Do not overtighten.After you replace the heart rate monitor battery, you may needto pair it with the device again.16 Device Information