Profile: Photocraft, Inc. designs and manufactures rotary optical encoders and photo-electronic sensors. We offer industrial photo-electronic sensors which includes wheeled encoders specifically for conveyor and web applications, hollow-shaft encoders, shaft encoders and absolute encoders. Our wheel encoder is an incremental encoder that uses precision measuring wheels to directly measure the movement of a conveyor belt and to accurately measure moving material. Our absolute encoder is a single-turn encoder generates a multi-bit binary code word indicating the angular position of the shaft.