The P352P is an electronic proportional only or proportional plus integral static pressure control with 0 to 10 VDC and 0 to 20 mA anolog outputs. The P352P is also equipped with three user-selectable integration constants, as well as a wide adjustable throttling range. Two models cover the ranges of 0.5 to 5 in. W.C. and 0.025 to 0.25 in. W.C.