General Tools and Instruments DCFM8906 v.1 - Manual (Page 13)

MIN/MAX REC SINGLE-POINT button will delete that
indication, but not REC. This signifies that the meter is still
recording, but now displaying real-time air speed
measurements.
Pressing the MIN/MAX REC SINGLE-POINT button again will
cause the indication MIN to appear. Now the upper display
will show the minimum (slowest) air speed recorded since the
recording session began.
Pressing the MIN/MAX REC SINGLE-POINT button yet again
will cause MAX to replace MIN. The upper display will now
show the maximum (fastest) air speed recorded since the
recording session began.
Pressing the MIN/MAX REC SINGLE-POINT button again will
return the display to showing the average air speed, with the
indications shown in Fig. 4.
To exit recording mode or clear the stored measurements,
press and hold the MIN/MAX REC SINGLE-POINT button until
the beeper sounds twice. The meter will then resume
operating in its default mode: displaying real-time
measurements without recording them.
DISPLAYING THE AVERAGE AIR SPEED
AT MULTIPLE POINTS
The DCFM8906 can calculate and display the average of air
speed measurements made at up to different points. This
feature makes it unnecessary to determine the “best” place to
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