AutomationDirect C18P-AP-1E Photoelectric Sensor

AutomationDirect C18P-AP-1E is an 18-mm tubular, polarized retroreflective photoelectric sensor with a 2 m sensing range. It emits a visible red light and provides a PNP, 3-wire output through a 4-pin M12 quick-disconnect, operating in dark-on mode so the output activates when the reflected light is blocked. The tubular, threaded housing is designed for rugged industrial environments and, for many listings, features metal construction with IP67 protection for dust and water exposure on factory floors. As part of the C18 series, the AP-1E offers a compact axial form factor suitable for tight mounting spaces on conveyors, packaging lines, and guards where space is at a premium and reliable presence detection is required. The 2 m range supports common short-distance sensing tasks, and the polarized retroreflective setup helps discriminate against unintended reflections from non-target surfaces. A 4-pin M12 connector supports straightforward wiring to PLCs and control circuits, making the AP-1E a practical choice for automation projects that demand a small, robust sensor with a clear operating state via its visible-red emission.