44 owner’s manual for use with models 10, 20, 30AppendixEN AppendixOptional AccessoriesOptional accessories, such asmounts, maps, fitness accessories,and replacement parts, areavailable at http://buy.garmin.comor from your Garmin dealer.Optional MapsYou can purchase additional maps,such as BirdsEye satellite imagery,Garmin custom maps, Inland Lakes,TOPO, BlueChart g2, and CityNavigator maps.Optional Fitness AccessoriesFitness accessories are availablefor the eTrex 30. Before you canuse the fitness accessory withyour device, you must installthe accessory according to theinstructions included with theaccessory.You can use optional fitnessaccessories including a heart ratemonitor or a cadence sensor withyour device. These accessories useANT+™ wireless technology to senddata to the device.Using Optional FitnessAccessories1. Bring the device within range(10 ft. or 3 m) of the ANT+accessory.2. Select Setup > Fitness.3. Select Heart Rate Monitor orBike Cadence Sensor.4. Select Search for New.5. Customize your data fields toview the heart rate or cadencedata (page 26).
