The IDEC SA2E-BN3-2M is a BGS photoelectric sensor equipped with an NPN output and a red LED for precise object detection. Its background suppression feature and reduced beam diameter enhance position detection accuracy by 30 to 40%, making it suitable for diverse applications, including cold storage warehouses. The sensor includes a knob for easy adjustment of the sensing range and incorporates reverse-polarity protection to prevent damage from wiring errors.