The IDEC SA2E-PN3-2M is a polarised retro-reflective photoelectric sensor designed for high-speed detection with a swift 0.5ms response time. It features an NPN output and is equipped with a red LED for easy status monitoring. The sensor comes with a 2-meter cable, ensuring flexible installation options. Its built-in reverse-polarity protection circuit safeguards against wiring errors, making it suitable for use in cold storage warehouses where reliability is crucial.