4. Operation and setting
4.1 Power on/off
Slide and remove the Battery Door, lnstall 4 AAA batteries. Be certain to align the batteries as
per the diagram within the battery compartment. Close the battery door completely.Press the
POWER key to turn the power On, the unit enter normal mode after display full show 1 second.
Press and Hold the POWER key for 3 seconds to turn the Power Off. To enter the simulation
mode: press and hold the POWER key for 5 seconds and release while the power is off.
NOTE:The unit must be turned off to enter normal operation from simulation mode.
Automatic power off feature: The display will shut off automatically when the depth
display reads continuously for 5 minutes.
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