MARINE ECHO SOUNDER, Fish Finder, Fishfinder, Echo Sounder, Echosounder, Depth Finder, Fish Sounder, ONWA® 5.6-INCH COLOR DISPLAY ECHO SOUNDERMODEL: KF- ... , Bottom Zoom and Bottom-lock Expansion(10) Display Advance SpeedLines/TX: Freeze, 1/8, 1/4, 1/2, 1/1, 2/1 ... Humidity85% at 40°C(3) Water proofingDisplay Unit: IPX4(4) Vibration±1mm ±10%, 2(5) to 13.2Hz, Maximum acceleration 7 m ...