STERIS 500173 LS4 Opto Photo Switch – 5328

The STERIS 500173 LS4 Opto Photo Switch 5328 is an optical sensor component designed for sterilization equipment integration. This opto switch detects the presence or absence of physical barriers and doors in STERIS sterilizer systems, functioning as a safety interlock or status-monitoring element in the machine's control circuit. It is typically mounted on the sterilizer frame to monitor door position or lid closure during the sterilization cycle.