Detailed Product Description FEATURE:1) Dual-frequency: 50 and 200 KHz2) 5.6-inch TFT LCD display with 8-color or multi-level amber presentation fishfinder3) Auto Mode for hands-off operation4) Variety of display modes: A-scope, bottom-lock expansion, marker zoom and unique bottom zoom displays5) Compound Temperature sensor optionSPECIFICATIONS1. General(1) Display5.6inch TFT LCD(2) Echo Color8 ...