Banner Eng.'s (Minneapolis, MN) Omni-Beam® Q45 photoelectric sensors operate in a retroreflective mode. A built-in Class II laser diode allows long sensing ranges up to 225', or 130' in the polarized version, with a 670-nm beam.
Balluff (Florence, KY) now offers all of the components necessary to build and maintain an Actuator-Sensor Interface (ASI) bus system, which allows simple connection of more than 100 packaging line components to a PC or PLC with minimal wiring.
Omron Electronics (Schaumburg, IL) has introduced new distance-settable sensors that assure stable detection of objects and materials. Background immune, they're effective regardless of color or material pattern.