The Omron F3SG-4RE0640P14 is a photoelectric safety light curtains switch that utilizes arrows to form a safety shielding field to protect personnel, as well as to identify a safety abridgment. This device is composed of optical sensors and a light emitter built into a plastic housing. It is designed to safely detect objects and control operations of machines, robots, or other automated processes. Its features include a quick response time, no false response, and no actuating force required. This device is suitable for use in many applications including those in the automotive, food and beverage industry, and metal working.