... is selectable from blue, light blue, white and black.(3) Basic RangeMeters: 5/10/20/40/80/150/ ... , 150fathoms, 200 passi/braza)(5) Zoom RangeTimes 2, 3, 4 and 5 ranges(6) Bottom Lock Expansion Range5/ ... .2, 0.2, 0.4, 0.8, 1.5, 3.0TX Rate(pulse/min) 600, 600, 600, 375, 187 ... A3. Environmental Condition(1) Ambient Temperature0°C to + 50°C(2) Relative Humidity85% at 40°C(3) Water proofingDisplay Unit: IPX4(4) ...