echo 200, echo 300c, echo 500c, and echo 550c Owner’s Manual
21
Index
Split Zoom page
5
surface noise
15
symbols, fish
12
system information
19
T
temperature alarm
13
temperature log
duration
7
scale
7
viewing
7
temperature offset
17
temperature, showing
15
U
units of measure
19
V
version, software
19
voltage alarm
13
W
water speed
odometer, displaying
16
sensor, calibrating
17
showing
15
water temperature alarm
13
water temperature offset
17
water temperature, showing
15
Z
zoom
adjusting automatically
10
adjusting manually
9
split screen
5