This listing is for a USED Fisher 4195KBR‑533 Wizard pneumatic pressure controller. It is designed to measure and control process pressure by comparing the sensed pressure to an adjustable set point and delivering a proportional pneumatic output signal. This unit is categorized as a pneumatic indicating pressure controller and provides local indication of process pressure and set point along with standard 3–15 psig pneumatic output, making it suitable for industrial process control applications where reliable, air‑powered control is required.