Although the fish finder is waterproof, but considering high corrosion and penetration of salt water, if there is water in the fish finder, please wipe out the water immediately with cloth, thanks! Note: This Fish Finder with 2.8 color screen , Attrative Lamp and Extended antenna.SPECIFICATION: 1 Display: 2.8inch LCD with 3 color tone:Blue, Orange, and Gray, pixels:240V x 320H 2 Back lighting: On/off White LED 3 Depth Capability:147feet(45m) 4 Sonar Coverage: 90 degrees beam angle in 125Khz 5 Wireless operational Range: 328feet(100m) 6 Power: 3.7V rechargeable lithium batteries 7 Floating& Waterproof design 8 Wireless Sensor battery reauirement: one replaceable CR2032 battery. 9 Water depth, water temperature, fish location, bottom contour can be constantly obtained from the water 10 User selectable sensitivity, zoom, units, depth range, shallow alarm, fish icon, fish alarm, and chart speed setting 11 Built in memory stores sonar setting when the fish finder is turned off 12 Wireless Sensor could shut down when it is out of the water 13 Operational Temperature: 14°F to 122°F(-10°C to 50°C). Package: 1x Fish Finder 1x Wireless Sensor 1x Charger 1x Car Charger and USB Cable 1x Neck Strap 1x Manual (English/Russian/German). This Fish Finder with 2.8 color screen , Attrative Lamp and Extended antenna 1 Display: 2.8inch LCD with 3 color tone:Blue, Orange, and Gray, pixels:240V x 320H 2 Back lighting: On/off White LED 3 Depth Capability:147feet(45m) 4 Sonar Coverage: 90 degrees beam angle in 125Khz 5 Wireless operational Range: 328feet(100m). The item "Lucky 2.8Wireless Sonar Sensor 45M Fishfinder Echo Sounder+Attractive Lamp 100M" is in sale since Friday, July 19, 2019. This item is in the category "Sporting Goods\Fishing\Fishfinders & GPS". The seller is "itsconstucting" and is located in Leicester. This item can be shipped to all countries in Europe, Australia, United States, Bahrain, Canada, Brazil, Japan, New Zealand, China, Israel, Hong Kong, Indonesia, Malaysia, Mexico, Singapore, South Korea, Taiwan, Thailand, Bangladesh, Belize, Bolivia, Brunei darussalam, Dominica, Ecuador, Egypt, Guadeloupe, Grenada, French guiana, Cambodia, Saint kitts and nevis, Macao, Martinique, Nicaragua, Pakistan, Peru, Paraguay, Turks and caicos islands, Aruba, Saudi arabia, United arab emirates, Chile, Bahamas, Costa rica, Dominican republic, Guatemala, Honduras, Jamaica, Kuwait, Panama, Philippines, Qatar, El salvador, Trinidad and tobago, Uruguay, Viet nam.