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3.0 LCD DISPLAY SYMBOLS
On Target indicator. Blinks on whenever there is an input signal.
Will appear to be solid on at higher frequencies.
Low Battery icon. Indicates that the batteries are low and need to
be replaced.
Times Ten icon. Indicates that the value shown is ten times that
which is displayed.
LED Indicator. Red LED is on when this indicator is illuminated.
Lock icon. Indicates that the unit is “Locked” on and making
continuous measurements (Lock-on mode).