The Omron E3S-DS30B41 Photoelectric Switch is a diffuse-reflective sensor designed for non-contact object detection in industrial automation. Operating on 12–24 VDC with an NPN transistor output and infrared LED, it detects presence, absence, or position at a sensing distance of approximately 300 mm, with a high-speed response. Encased for rugged industrial use with IP67 protection and bracket-mount compatibility, it runs on -25°C to 55°C and ships with a pre-wired cable. Maintenance teams, OEMs, and system integrators use it for sensor replacement and retrofit to maintain consistent detection; common replacements include Omron E3S-DS30B42, E3Z-D61, and E3FA-DN22.
