General A3G Instruction Manual page 12

Using your detector
‣ Switch the detector on by pressing the power button. The speaker will beep
once indicating the unit is operating.
‣ The LCD screen will display the battery level, detection mode and speaker function.
‣ To change between coarse and fine mode press the coarse / fine mode button
‣ Move the detector into the path of the laser beam.
‣ Hold the detector upright for horizontal beams. Rotate the detector 90°
for vertical beams.
‣ The direction arrows or level line on the LCD screen will indicate the position
of the laser beam. The detector will emit a constant beep once the level position
has been located.
12