Keyence PS-48 Reflective Optical Photoelectric Sensor Head

The Keyence PS-48 Reflective Optical Photoelectric Sensor Head is a compact sensing head designed for non-contact detection of reflective surfaces in automation environments. Built with an infrared LED source and a 5 mm diameter barrel, it fits tight mounting spaces while delivering reliable optical performance. The 25 mm specification references its compact form, enabling precise alignment along narrow conveyors and close-proximity sensing on small parts or glossy targets. As a reflective head, it detects the presence or absence of a target by measuring the reflection of emitted infrared light off surfaces such as labels, metal tabs, or polished plastics. Typical applications include object presence verification on conveyors, edge or gap detection, and alignment tasks where fast, contactless sensing is required. The infrared illumination provides consistent detection across varying surface finishes, and the barrel-style housing supports versatile mounting configurations in compact automation assemblies.