Someone with knowledge of 1D handheld barcode scanners ?

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Joined Nov 29, 2005
The plain-Jane handheld (1-dimension linear) flavors, not the ones with keyboards, displays...

There is a type that moves a laser forth and back on a thin line, is that red laser 1D ?
There is a type that floods red light; is thar red LED and CCD sensing ?
There is a type that emits the light only when triggering;
There is a type that is always emitting and needs only to be aimed, what kind is that ?
-It may be because is configured to 'always on' ; not a type of scanner. Can someone confirm ?-
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