The IDEC SA2E-BP3-2M is a BGS photoelectric sensor equipped with PNP output and a red LED for precise object detection. Its background suppression capability and adjustable beam diameter, reduced by 30 to 40%, enhance position detection accuracy. The sensor includes a knob for easy setting of the sensing range and is particularly suitable for cold storage warehouse equipment. Additionally, it features built-in reverse-polarity protection to prevent damage from incorrect wiring.