Lucky fish finder is especially designed for amateur and professional fisherman. It can detect the water depth and find out the fish easily. Just enjoy your fishing time! Detect sensitivity: Lucky fish finder transducer controls how many details shown on the display. You can set up the sensitivity from 1 to 10. The more sensitive it is, the more detailed it can detect. Fish alarm: An alarm will sound when the portable fish finder detect fish corresponding to the alarm setting. It can distinguish the relative fish size(large, middle and small) in a certain water area. Units: Four different units from the menu--M/℃, FT/℃, M/℉, FT/℉. Multi –ways to use: • Tie the fishing line to the hole of the sonar sensor, and cast it to the water. • Attach the adapter to the fishing boat hull using the mounting tabs. • Ice fishing, river fishing, sea fishing, kayak fishing, shore fishing. Specification 1)Display:2.4inch TFT color LCD, pixels:240Vx960H 2)Back lighting: On/off White LED 3)Depth Capability:147feet(45m) 4)Sonar Coverage:90 degrees beam angle in 125Khz 5)Power:3.7V rechargeable lithium batteries 6)Waterproof design:level-4(spray-water-proof) 7)Operational Temperature:14°F to 122°F(-10°C to 50°C) 8)Built in memory stores sonar setting when the fishfinder is turned off Wireless Sonar Sensor The wireless sonar ball of the wireless fish finder comes with 2 fish attractive lamps. It can help you find the fishes more easily. The detect angle of the sonar transducer is 90, and the detect depth is from 0.7m(2.3ft) to 45m(147ft). The wireless operating distance of the depth sounder can reach to 60m(196ft). Warm tip: please pull the antenna out when you detect fishes in the water. Portable Fish Finder with Clear Screen Give you the information including water depth, water temperature, fish size, fish depth, underwater countour and you can easily read it on the screen. Portable and handheld. You can easily take it to go fishing. Warm tip: the sonar sensor is waterproof, but the hand held Lucky fish finder is not. Please do not submerge or spray the wireless fish finder screen housing with water or use chemical to clean. Various Ways for Fishing Shore Fishing Kayak Fishing Sea Fishing Ice Fishing