LUCKYSMART LBT-1, Руководство по эксплуатации

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Language
Language setting is to switch the languages of different
countries. Under this menu, you can choose your pr-
eferred language (Chinese and English 2 languages).
Backlight
The backlight is to adjust the screen brightness.
Alarm
Fish alarm
Fish alarm refers to the alarm set when different fish
icons appear. You can choose to turn off the fish ala-
rm, or select the large, medium and small fish alarm.
When you only need to make an alarm for the large
fish, just set the large fish alarm. However, the prere-
quisite for the function of the fish alarm is that the
detected fish situation can be alarmed only after the
fish icon is turned on.
Shallow alarm
Shallow alarm is generally set to prevent stranding.
When the actually measured water depth is lower
than the set value, the fish finder will make an alarm
to remind you that the current water depth is too shallow.
System