Erich Industries offers presence and photo eye safety sensors. There are nearly a dozen types to choose from, including sliding door presence sensors, 4-row presence sensors designed to provide safety protection for all types of automatic doors, and infrared presence sensors for industrial environments.

PCC Professional Controls offers Leuze Electronic optoelectronic safety sensor systems, including safety laser scanners, light curtains, switches and relays.

Rockwell Automation's safety sensor products include light curtains, safety edges and mats, and laser scanners. Safety switches include limit and interlock switches. Safety light curtains are photoelectric presence sensors that protect personnel from hazardous machine motion.