Press the READ key again will toggle back and forth between the length and width
measurement on the upper portion of the screen;
Press SET key to clear the data on the portion of the screen, then can begin the new
calculation of area.
To choose measurement mode, press SET key again;
Tips:
Press the SET key one by one will toggle back and forth between the length, area and
volume measurement. If there are datum on the display, first pressing the SET key will
clear the current datum, and the mode will be invariable.
Addition of area under area mode:
Press the M key to save the calculated area of first time measurement, at the same time, the
“M+” icon appears on the screen;
Press SET key to clear the current displayed data, then can begin the second time
measurement and computation (follow step 1 and step 2 under the area section);
After getting the desired area of the second time computation, press +/= to enter the
addition mode. A “+” icon would appear on LCD.
Press RM key to recall the first calculated area for the addition. The “M+” icon will disappear
and the stored memory will be automatically cleared;
Press +/= key, the sum of both areas is shown on the lower portion of the screen;
