... -667 FEATURE:1) Dual-frequency: 50 and 200 KHz2) 5.6-inch TFT LCD display with 8-color or multi-level amber presentation3 ... /TX rateDisplay End Depth(m) 5, 10, 20, 40, 80, 150, 300Pulse-Length(ms) 0.2, 0.2, 0.2, 0.4, 0.8, 1 ... 40°C(3) Water proofingDisplay Unit: IPX4(4) Vibration±1mm ±10%, 2(5) to 13.2Hz, Maximum acceleration 7 m/s, 13 ...