LUCKY FF918-C180S Wired Fishing finder 540ft/180m Depth Sounder Fish Detector Monitor echo sounder for fishing from a boat

SPECIFICATIONSBrand Name: LUCKYOrigin: Mainland ChinaPower Source: DC 10V-18VPower Input: AAADetecting Range: 0.6-183 MeterSonar Coverage: 45 degrees in 200KhzLanguage: EnglishSonar Frequency: Cable: 200KhzDisplay: 3.9inchBack lighting: On/off White LEDCable Transducer Depth Capability: 540feet(180m)sonar coverage: 45 degrees beam angle in 200khzmenu mode: Wired mode PRODUCT SPECIFICATION:1) Display: 3.9inch high-contrast 4-level grayscale FSTN LCD2) Back lighting: On/off White LED3) Depth Capability: 540feet(180m)4) Power Requirement: 11 to 13V DC5) Water depth,water temperature, fish location, bottom contour can be constantly obtained from the water6) User selectable sensitivity,zoom,units,depth range,shallow alarm,fish icon,fish alarm,and chart speed setting7) Built in memory stores sonar setting when the fish finder is turned off8) Operational Temperature: 14°F to 122°F(-10°C to 50°C)   This fish finder FF918-C180S is excellent partner for boat fishing.Two ways of installing tran