When in Streaming Presentation mode, the scanner’s aimer goes out after a short time, but the scan illumination remains on all the time to continuously search for bar codes. Two modes are available,
Normal and Enhanced.
Normal mode offers good scan speed and the longest working ranges (depth of field).
Enhanced mode will give you the highest possible scan speed but slightly less range than Normal mode. Enhanced mode is best used when you require a very fast scan speed and don’t require a long working range