The D-TEC S3 is a miniature photoelectric sensor designed for robust industrial automation applications. It features a compact 32x20x12 mm housing, IP67 protection against dust and water, and visible red LED emission. Available with cable or M8 connector, it offers various optical functions including thru-beam, polarized retro-reflective, diffuse proximity, and background suppression, making it suitable for packaging lines, material handling, and automatic machines. It operates on 10-30 VDC with NPN or PNP selectable output.