The DATALOGIC S5N-PA-5-C21-PP is an M18 barrel photoelectric sensor from the S5N series, featuring a 400mm sensing range with standard plastic housing. It utilizes axial optic technology with LED indicator and M12 connector. This medium diffuse proximity sensor offers NO/NC switching mode with PNP output (part number: 952002181, replaces 952002180/S50-PA-5-C21-PP).