F3SJ Safety Light Curtains Omron Industrial Automation F3SJ Safety Light Curtains offer a tailored approach for various production environments. Omron Industrial Automation F3SJ Safety Light Curtains offer a product range that allows users to choose the ideal product for a particular application's needs. The EASY type (F3SJ-E) provides simple hand detection, while the BASIC type (F3SJ-B) adds the potential for series connection and simple muting functions. The ADVANCED type (F3SJ-A) provides finger protection, series connection, complex blanking, and complex muting functions. All versions conform to PLe/Safety Category 4 and SIL3 requirements.