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4. Buttons:
Figure C: Buttons
READ
MEM
INPUT
MEM
RECALL
FT / M

+/=

a

b e

c f

d g

a. Read:
Takes a measurement.
b. MEM Input:
Stores current measurement
to memory.
c. MEM Recall:
Displays stored
measurement from memory,
then clears it from memory.
d. FT / M:
Toggles between foot and
meter units of measure.
e.
Volume calculation mode.
f.
Area calculation mode.
g. + / =
Toggles addition mode.
5. Measurement Base:
Rest this base against the surface
you want to measure from
before taking a measurement.