Pentax ETH-302 Instruction Manual page 23

Flow of setting display
Setting of vertical angle
Press [R/L] key
Setting of 90°buzzer
Press [R/L] key
Setting of correction of vertical angle
Press [R/L] key
Setting of angle display
Press [R/L] key
Setting of automatic power off function
Press [R/L] key
Setting of Angle unit
Previous items can be displayed by pressing the [HOLD] key.
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