or
FT
2
.
d)
To
edit
value
of
area,
press
momentarily
the
BKLT
button
to
change
with
‐
0.01
(
Max.
area
value
is
99.99
),i.e.
To
decrease
the
stored
area
value.
If
no
value
is
stored,
press
BKLT
button,
it
won’t
active
and
still
remain
as
00.00
e)
Press
HOLD
button
to
change
area
value
with
+0.01
(i.e.
Increase
the
value)
f)
Press
and
hold
BKLT
button
for
2
seconds
to
change
area
value
with
‐
0.1
once
(
i.e.
Decrease
the
value),
or
keep
pressing
and
holding
HOLD
button
to
quick
select
the
numbers.
Release
the
button
for
the
number
you
desired.
g)
Press
and
hold
HOLD
button
for
2
seconds
to
change
area
value
with
+0.1
once
(i.e.
Increase
the
value),
same
operation
as
decreasing
value
per
step
f)
h)
Press
SET
button
to
automatically
save
and
return
to
VOL
mode
3.
REC
mode
operation
(
While
at
RECORD
mode
)
Long
press
MODE
to
go
through
Vol.
mode
then
long
press
MODE
again
to
enter
REC
mode.
a)
Press
HOLD
button
to
increasingly
recall
stored
air
velocity
reading
+1
b)
Press
BKLT
button
to
decreasingly
recall
stored
air
velocity
reading
‐
1
c)
Press
and
hold
SET
button
for
2
seconds
to
clear
stored
readings
d)
Press
MAX/MIN
button
to
circularly
viewing
Maximum.
Minimum.
Average
readings
from
powered
on
,
press
MAX/MIN
button
again
to
return
to
record
mode
e)
While
viewing
Max/Min/Avg
readings,
you
may
press
UNIT
button
to
change
AVG
unit,
press
UNIT
button
again
to
return