SICK KT5G-2P1312 Contrast Sensor

KT5G-2P1312 is a 40 mm contrast sensor in SICK's KT5G family, designed for reliable detection of light/dark differences on moving or stationary materials. Housed in a compact rectangular enclosure, it uses an M12, 4-pin connector for easy integration with industrial controllers. The device provides a single digital switching output suitable for connection to PLCs and other control hardware, enabling straightforward threshold-based triggering when contrast changes are detected. Ideal applications include label and mark detection on packaging lines, position verification of printed materials, and material orientation tasks on conveyors where a consistent contrast target is present. The KT5G series is known for robust operation in industrial environments, and the KT5G-2P1312 variant shares the same rugged construction and simple mounting approach as other KT5G models, with a 40 mm sensing distance offering a practical balance between machine speed and sensing range. For system designers, this sensor integrates into standard machine control logic with minimal setup and wiring, enabling quick deployment in automated quality control, carton or film processing, and assembly-line verification tasks where detecting a specific contrast between features is critical.