The Omron F3SG-4RA1630-30 is a Safety Light Curtain PHOTOELECTRIC SWITCH. It is a type 4 device, meaning it provides a high level of safety functionality, and complies with various safety standards. It features high-precision light curtains in a 30 mm resolution, capable of detecting objects down to 4 mm in size. The F3SG-4RA1630-30 safety light curtains feature a small, compact design for easy installation in confined spaces. They also feature a high degree of versatility, with an adjustable range of up to 6 meters, allowing them to be used both indoors and outdoors. Additionally, they are designed with built-in protection against dust and water, making them suitable for use in many industrial or factory settings. The F3SG-4RA1630-30 safety light curtains are also designed with a 150 kHz transmission frequency, ensuring fast response times while consuming minimal amounts of energy.