E3S-CD16 is a type of digital fiber optic sensor manufactured by Omron. It is designed to detect objects within a wide range of distances with high accuracy and repeatability. It is highly reliable, rugged, and suitable for manufacturing process control, and other automation applications. It uses an LED light source, a high precision lens, and a DSP (digital signal processor) to detect transparent, semi-transparent, and reflective objects, even in dusty and steamy environments. It features high-speed response, 20-bit resolution, and a programmable light intensity range to detect material variations down to 0.02 mm. It can detect object sizes from 0.2 mm to a few millimeters, and the resolution is adjustable from 0.04 mm to 0.08 mm. It is IP67 certified for water, dust, and vibration resistance.