Datalogic PowerScan RF Programming Manual page 90

Read
Verification
84
Scan the bar codes below to set the minimum number of reads required
to verify Code 39/Pharmacode 39 symbologies.
NOTE
SET ------------------------------------------
Set to One read
Set to Two reads
Set to Three reads
Set to Four reads
END ------------------------------------------
The more times the scanner is required to
read and compare the bar codes data, the
longer the scanner will take to validate and
transmit a label.
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PowerScan RF Scanner