The E2B-M18LS05-WP-B1 2M part of Omron is a photoelectric switch designed to detect an object at a specified distance. It consists of an optical head, an amplifier head, and a receiver amplifier head. The optical head is the light source which emits a beam of infrared light, and the amplifier head and receiver amplifier heads are the two components that receive the optical beam and convert it into an electrical signal. The E2B-M18LS05-WP-B1 2M has a detection distance of up to 2 meters, a response frequency of 200 Hz, and a response time of 1 ms. It is designed to be used in various industries such as packaging, automotive, and manufacturing.