The IDEC SA2E-TN3-2M is a through-beam photoelectric sensor designed for high-speed detection with a swift 0.5ms response time. It features an NPN output and a red LED for easy alignment, along with a 2-meter cable for convenient installation. This sensor is particularly suitable for use in cold storage warehouses due to its robust design. Additionally, it includes a built-in reverse-polarity protection circuit to prevent damage from incorrect wiring, ensuring reliable operation and longevity.