The PDR2000AO Two-Channel Digital Power Supply and Readout is a versatile, low cost solution for powering and displaying up to two (2) Baratron® transducers. Both instruments are simultaneously powered, so users may alternate between readings with the press of a button. Readings are also available on demand via the RS-232 interface. Two process relay trip points are available and may be assigned to either manometer. Upper and lower settings allow complete control over the hysteresis of the control trip point.