52 Forerunner ® 301 Owner’s ManualAPPENDIX > SPECIFICATIONSSpecificationsPhysicalCase: Fully-sealed, high-impact plastic alloy,waterproof to IEC 60529 IPX7 standards(waterproof to 1 meter for 30 minutes)Size: 3.26” x 1.71” x 0.69”(82.8 mm x 43.4 mm x 17.5 mm)Weight: Approx. 2.75 oz (78 g)Temperature Range:-4 °F to 140°F (-20 °C to 60°C)(operating)Display: 100 x 64 pixels, W 1.44” x H 0.92”(36.49 mm x 23.35 mm)PowerInput: Rechargeable built-in lithium-ion batteryBattery Life: 14 hours, typical usePerformanceReceiver: 12 parallel channelAcquisition Time:Warm Start: Approx. 15 secondsCold Start: Approx. 45 secondsAutoLocate®: Approx. 5 minutesUpdate Rate: 1/second, continuousGPS Accuracy:< 15 meters RMS 1, 95% typical2Velocity Accuracy:0. 1 knot RMS steady stateDynamics: Performs to specifications to 6 g’sAntenna: Built-in patch1Subject to accuracy degradation to 100 m 2DRMS under the U.S.DOD-imposed Selective Availability program (when activated).2Accuracy depends on view of the sky. 99%–clear view; 95%–typical.