The Panasonic EQ-501 is a high-performance photoelectric sensor from the EQ-500 Series, engineered for reliable reflective sensing up to a maximum distance of 2.5 m. Utilizing an 855 nm infrared LED light source, it ensures accurate object detection even in challenging industrial environments. The sensor operates within a wide voltage range of 12–240 VDC or 24–240 VAC, providing flexibility across diverse control systems. Featuring a relay output and screw terminal connection, the EQ-501 offers straightforward installation and dependable switching performance. Its IP67-rated housing provides strong resistance against dust and water, making it suitable for harsh operating conditions. With an operational temperature range from -20°C to +55°C, the Panasonic EQ-501 delivers stable, long-term reliability. In North America, Europe, Asia, and worldwide automation systems, it could potentially be ideal for applications requiring durable and precise photoelectric sensing with broad voltage compatibility.