A. MAX/MIN Recording of the maximum/minimum values
B. Bar graph Analog display with range indication
C. TIME/DATE Date/time display
D. Measuring value
E. Clock symbol Active auto power OFF function
F. BAT Battery replacement display
G. REC Active data recording
FULL Internal data memory full
H. dBA Weighting lter for A line (=hearing)
dBC Weighting lter for C line (=linear)
I. HOLD The current reading is held
J. AUTO Automatic measuring range setting is active
K. FAST Fast time benchmarking (125 ms/measuring operation)
SLOW Slow time benchmarking (1s/measuring)
L. OVER Measuring range is exceeded
UNDER Measuring range is undercut