The Allen-Bradley 1791DS-IB12 is a used safety input module designed for high-reliability industrial safety applications. Featuring 12 safety-rated inputs and 4 test outputs, this module ensures precise monitoring and control of safety devices, including emergency stops, light curtains, and safety switches. Engineered for seamless integration with Allen-Bradley Guard I/O and safety controllers, it provides fast response times and dependable protection in manufacturing, process control, and robotic safety systems.