Datalogic Scanning I GD4100 - Manual (Page 35)

LED and Beeper Indicators
Product Reference Guide 33
Good Read Beep Length — continued
ENTER/EXIT PROGRAMMING MODE
Good Read Beep Length = 80 msec
Good Read Beep Length = 100 msec
Good Read Beep Length = 120 msec
Good Read Beep Length = 140 msec
Good Read Beep Length = 160 msec
Good Read Beep Length = 180 msec
Good Read Beep Length = 200 msec
DEFAULT