Omron E3S-CT11-M1J Photoelectric Sensor

Omron E3S-CT11-M1J is a photoelectric sensor from the E3S Series designed for reliable object detection in industrial automation. This through-beam or diffuse-type unit uses an infrared LED to sense presence, with model-specific distances typically up to several meters. It operates on 12–24 VDC and provides an NPN output, making it suitable for standard low-side switching configurations. The housing is industrial-grade plastic, and the sensor carries an IP67 protection rating for use in harsh environments, with bracket-mount compatibility and an M12 connection for easy installation on conveyors, packaging lines, assembly cells, and material-handling equipment. It tolerates -25°C to +55°C and includes reverse polarity and short-circuit protection to maintain stable performance under demanding conditions. As part of the Omron E3S Series, the E3S-CT11-M1J supports object detection, positioning, and counting tasks where precise sensing is required and fast response times (milliseconds range) help keep automated processes synchronized. Common replacements for retrofit or compatibility purposes include E3S-CT11-L, E3Z-T61, and E3JK-TR11.