Fishfinder 340C Owner’s Manual iiiINTRODUCTION > PRODUCT REGISTRATION, CONTACT GARMIN , AND CARING FOR THE FISHFINDERProduct RegistrationHelp us better support you by completing our online registrationtoday! Have the serial number of your Fishfinder handy, andconnect to our Web site (http://www.garmin.com). Look for theProduct Registration link on our Home page.Use this area to record the serial number (8-digit number locatedon the back of the box). Be sure to keep your original sales receiptin a safe place, or attach a photocopy inside the manual.Serial Number: ___ ___ ___ ___ ___ ___ ___ ___Contact GarminIf you encounter any difficulty while using your Fishfinder, or ifyou have any questions, in the U.S.A. contact Garmin ProductSupport by phone: 913/397.8200 or 800/800.1020, Monday–Friday, 8 AM–5 PM Central Time; or go towww.garmin.com/support/ and click on Product Support. InEurope, contact Garmin (Europe) Ltd. at 44/0870.8501241.Caring for the FishfinderThe Fishfinder case is constructed of high-quality materials anddoes not require user maintenance except cleaning.Cleaning the CaseClean the Fishfinder’s outer casing (except for the screen) usinga cloth dampened with a mild detergent solution. Wipe it dry.Avoid chemical cleaners and solvents that can damage plasticcomponents.Cleaning the ScreenApply eyeglass lens cleaner to a clean, lint-free cloth, and thengently wipe the screen with the moistened cloth.CAUTION: The Fishfinder 340C lens is coated with a specialanti-reflective coating which is very sensitive to skin oils,waxes, and abrasive cleaners. CLEANERS CONTAININGAMMONIA HARM THE ANTI-REFLECTIVE COATING.StorageDo not store the Fishfinder where prolonged exposure totemperature extremes might occur (such as in the trunk of a car),because permanent damage can result.Water ImmersionThe Fishfinder is waterproof to IEC Standard 60529 IPX7. It canwithstand immersion in 1 meter of water for 30 minutes. Prolongedsubmersion can cause damage to the Fishfinder. After submersion,wipe and air dry the Fishfinder before reusing.