General LM30 Instruction Manual page 4

Measurement reference point
‣ Press and hold the menu button to enter setup mode.
‣ The measurement taken from top of unit and measurement
taken from top of unit icon will flash alternately. Release the
menu button to select.
‣ After powering off the unit will default back to measurement
taken from bottom.
View history
‣ Press the menu button to view history.
‣ When the history icon appears press the power on / read
button. The previous 20 measurement will be displayed on
the screen.
‣ Press the clear / back / power off button to exit history.
MEASUREMENT
Single Measurement
‣ Hold the unit and point towards the measurement target.
Press the power on / read button. The laser will be emitted.
‣ Re-press the power on / read button to take the measurement.
Results will be shown on the display screen.
‣ The laser will turn off automatically after 20 seconds of inactivity.
Continuous Measurement
‣ Press and hold the power on / read button for 3 seconds. The
laser will be emitted with result shown on the display screen.
‣ Move the unit until the required distance is displayed.
‣ Press the clear / back / power off button to exit continuous
measurement mode.
Area Measurement
‣ Press the menu button four times to enter area measurement
mode. A rectangle will appear on the display screen with one
edge flashing.
‣ Press the power on / read button to take the first measurement
(length).
‣ Press the power on / read button to take the second
measurement (width).
‣ The area will be calculated automatically with results shown
on the display screen.
‣ Press the clear / back / power off button to clear data. Press
and hold the clear / back / power off button to exit area mode.