Operating temperaturerangeFrom -5° to 50°C (from 23° to 122°F)Radio frequency/protocol2.4 GHz ANT+ wireless communicationsprotocol*The device withstands pressure equivalent to a depth of 30 m.For more information, go to www.garmin.com/waterrating.Speed Sensor and Cadence Sensor SpecificationsBattery type User-replaceable CR2032, 3 voltsBattery life Approximately 12 months (1 hour per day)Operating temperaturerangeFrom -20º to 60ºC (from -4º to 140ºF)Radio frequency/protocol 2.4 GHz ANT+ wireless communicationsprotocolWater rating 1 ATM**The device withstands pressure equivalent to a depth of 10 m.For more information, go to www.garmin.com/waterrating.Viewing E-label Regulatory and ComplianceInformationThe label for this device is provided electronically. The e-labelmay provide regulatory information, such as identificationnumbers provided by the FCC or regional compliance markings,as well as applicable product and licensing information.1 Hold .2 Select System > About.3 Select .Device CareNOTICEDo not store the device where prolonged exposure to extremetemperatures can occur, because it can cause permanentdamage.Avoid chemical cleaners, solvents, and insect repellents that candamage plastic components and finishes.Secure the weather cap tightly to prevent damage to the USBport.Cleaning the Device1 Wipe the device using a cloth dampened with a milddetergent solution.2 Wipe it dry.After cleaning, allow the device to dry completely.Caring for the Heart Rate MonitorNOTICEA buildup of sweat and salt on the strap can decrease the abilityof the heart rate monitor to report accurate data.• Rinse the heart rate monitor after every use.• Hand wash the heart rate monitor after every seven uses,using a tiny amount of mild detergent, such as dishwashingliquid.NOTE: Using too much detergent may damage the heart ratemonitor.• Do not put the heart rate monitor in a washing machine ordryer.• When drying the heart rate monitor, hang it up or lay it flat.User Replaceable BatteriesWARNINGSee the Important Safety and Product Information guide in theproduct box for product warnings and other importantinformation.Replacing the Heart Rate Monitor Battery1 Use a small Phillips screwdriver to remove the four screws onthe 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.Replacing the Speed Sensor or Cadence SensorBatteryThe LED flashes red to indicate a low battery level after tworevolutions.1 Locate the circular battery cover À on the back of the sensor.2 Twist the cover counter-clockwise until the marker points tounlocked and the cover is loose enough to remove.3 Remove the cover and the battery Á.TIP: You can use a piece of tape  or a magnet to removethe battery from the cover.4 Wait 30 seconds.5 Insert the new battery into the cover, observing polarity.NOTE: Do not damage or lose the O-ring gasket.6 Twist the cover clockwise until the marker points to locked.NOTE: The LED flashes red and green for a few secondsafter battery replacement. When the LED flashes green andthen stops flashing, the device is active and ready to senddata.Device Information 11