... Description Depth Finder, Echo sounder, Fishing Net, Dual-frequency: 50 and 200 KHz, 5.6-inch TFT display with 8- ... FEATURE:1) Dual-frequency: 50 and 200 KHz2) 5.6-inch TFT LCD display with 8-color or ... transmitted), 300W(12) Pulse-length/TX rateDisplay End Depth(m) 5, 10, 20, 40, 80, 150, 300Pulse-Length(ms ... proofingDisplay Unit: IPX4(4) Vibration±1mm ±10%, 2(5) to 13.2Hz, Maximum acceleration 7 m/s, 13 ...