The AM56NT4B3220380 is an Omron Fiber Optic Sensor. It is a kit that includes a transmitter, receiver and reflector that are used together to detect objects and materials with varying reflectivity. The kit includes a sensitivity adjuster that can be used to set the detection range of up to 10 mm. The kit is suitable for use in harsh environments, with an operating temperature range of -40°C to +80°C. It is also resistant to dust, dirt and water, making it ideal for use in industrial applications.