Bite Alarms LUCKY FF818 Portable Wired Fish Finder Sounder Fish Alarm Fishfinder 100M Fishing Echo Sounder Fish Detector This amazing product is especially designed for amateur and professional fishermen alike, to find out the location of fish and depth of water. The unit can be used in ocean, river or lake and is fantastic for detecting schools of fish in any particular area. Using amazing and innovative technology, this portable fish finder is the great tool to bring the fish to you Features: Portable wired fish finder for fishing with TN/ANTI-UV LCD display. Round transducer sensor with 8m cable, 45-degree beam angle. Operational temperature: -4℉-58℉ (-20℃-70℃), suitable for ice fishing too. Depth range from 2 feet (0.7 meters) to 328 feet (100 meters). Various features settings: high/low sensitivity setting, fish depth scale, audible fish alarm, user selectable meter or feet readings. Waterproof design: level-4 (spray-water-proof), able to shoot through boat hull and clear ice. Specification: Display: TN/ANTI-UV LCD Display size: 40W * 39H Back lighting: Green LED backlight Powered by: 4 * AAA battery (not included) Depth range Max/Min: 328 Feet (100meters) / 2 Feet (0.7meters) Operational temperature: -4℉-58℉ (-20℃-70℃) Waterproof design: level-4 (spray-water-proof) Bottom show: Show the bottom grass or rock Transducer cable length: 8m / 26ft Package size: 26 *17.3 * 6cm / 5.8 * 5.1 * 3.8in Package weight: 560g / 1.23lb Package List: 1 * Handheld Wireless Receiving Host 1 * Transducer with 26ft / 8M Wire 1 * Bolt 1 * Neck Strap 1 * Replaceable Sonar Senor Cap 1 * Manual