68 Forerunner ® 205/305 Owner’s ManualAPPENDIXCautionFailure to avoid the followingpotentially hazardous situationsmay result in injury or propertydamage.Use the Forerunner only as anavigational aid. Do not attempt touse the Forerunner for any purposerequiring precise measurementof direction, distance, location, ortopography. This product shouldnot be used to determine groundproximity for aircraft navigation.The Global Positioning System(GPS) is operated by the UnitedStates government, which is solelyresponsible for its accuracy andmaintenance. The government’ssystem is subject to changeswhich could affect the accuracyand performance of all GPSequipment, including the Forerunner.Although the Forerunner is aprecision navigation device, anynavigation device can be misusedor misinterpreted and, therefore,become unsafe.The Forerunner and heart ratemonitor are consumer devices, notmedical devices, and could sufferfrom interference from externalelectrical sources. The heart ratereadings are for reference only andno responsibility can be accepted forthe consequences of any erroneousreadings.WARNING: This product, its packaging, and its components contain chemicalsknown to the State of California to cause cancer, birth defects, or reproductive harm.This Notice is being provided in accordance with California’s Proposition 65. If youhave any questions or would like additional information, please refer to our Web siteat www.garmin.com/prop65.