... zoom display6) Compound temperature sensor optionSPECIFICATIONS1. General(1) Display10.4 inch TFT LCD(2) Echo Color8 colors (including background color) according to echo ... 300 meters (1000 feet, 150fathoms, 200 passi/braza)(5) Zoom RangeTimes 2, 3, 4 and 5 ranges(6) Bottom Lock Expansion Range5/10meters, 10 ... (ms) 0.1, 0.1, 0.1, 0.2, 0.4, 0.7, 1.5, 2.5TX Rate(pulse/min) 80, 80, 80, 160 ...