4. Operation Instructions
4.1.
• Battery installation
Open the battery compartment door on the back of the tool, and plug one 9 Volt block battery onto the battery
connector and put the battery back to the compartment and close the door.
• Distance measurement and account functions
Switch the ”K” button to the ”DISTANCE” position, the tool will enter distance measurement state and wait
to measure.
4.2. Distance Measurement
• Make the induction hole “I” face against the measured object (e.g. the wall) and keep the tool vertical to the
measured object; make sure the level bubble stands between the two lines by adjusting the position of the
tool.
• Press the READ key to get the measured distance and the laser beam indicates the measured surface
• Keep pressing the READ key and move the tool to get the dynamical readings, and the measured distance
will be displayed on upper portion of the screen.
• Press the MODE key and READ key together to select the measuring unit as British measurement or Metric
system.(original measuring unit:Metric measurement).
Tips
• In the ”DISTANCE” mode, the backlight will be automatically light, and go out without pressing the key
within 15s. Press any key to turn on the backlight again.
• In the ”DISTANCE” mode, the tool will turn off automatically without pressing key within 30s. Press READ
key to turn on it. The value before turning off will display on the screen.
• The tool will have sound indication when pressing the key. It shows that the pressing key is effective.
4.3. Addition (W/O using M memory)
• Press READ key for measurement and the measured value is displayed on upper portion of the screen;
• Press +/= key to enter the addition mode, and the “+” icon will appear on the display and at the same time,
the result is displayed on the lower side of the display (press +/= key again to cancel the add operation);
• Press READ key again for second time measurement, the measured value is displayed on upper portion of
the screen;
• Press +/= key again to display the sum on the lower portion of the screen;
• Repeat the steps above can continue accumulation.
4.4. Addition (using M memory)
• Press the M key to save the first measured result, and the “M+” will appear on the display;
• Press the READ key for new measurement;
• Press the +/= key to enter the addition mode, and the “+” will appear on the display;
