Extreme Networks A3 MK II Instruction Manual page 26

USING YOUR DETECTOR (continued)
▪ Hold the detector upright for horizontal
beams or rotate 90° for vertical beams.
▪ The direction arrows or level line on the LCD
screen will indicate the position of the laser
beam. A digital measurement of either how far
up or down the detector is from the laser line
will also be displayed. The detector will emit
a constant beep once the level position has
been located.
▪ To turn on the backlight, hold down the
mode button for approximately 3 seconds.
26