A
．
Plus
B
．
Area/volume
（
L=length
；
W=width
；
H=height
）
C
．
Memory
D
．
Memory, computing result
E
．
Current measuring result
F
．
Display when lack of electric quantity
G
．
Square foot
H
．
Cubic foot
I
．
Square meter
J
．
Cubic meter
OPERATION GUIDE
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
z
Make the induction hole of the tool face against the measured object (e.g. the wall) and keep
the tool vertical to the measured object; make sure the point of the level vial stands between
the two line of the level vial by adjusting the position of the instrument.
z
Press the READ key to start the tool, the instrument is ready to work.
z
Press the READ key again to get the measured distance and the laser beam indicates the
measured surface
z
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;
z
Press the SET key and the READ key together to select the measuring unit as British
measurement or metric system. (original measuring unit : Metric measurement ).
Tips: A. The measured object must be normatively hard surface and not be blocked by any
barriers;
B. Select a smooth hard surface with big area to measure for precise result;
C. If the measured surface is too small and irregular or with soft surface, chipboard can be
used on the surface of the measured object;
D. The tool cannot measure through glasses;
E. The tool should be over 2 feet (60cm) away from the measured object when measuring;
F. To make sure accurate measurement, you should operate when temperature of the unit is
same with temperature of the circumstance.
G. The distance measurement should be counted from the end of the tool.
Addition (W/O using M memory)
z
Press READ key for measurement and the measured value is displayed on upper portion of
the screen;
4
