2301050PD3V11B | Setra | Pressure 
Setra Model 230 Wet-Wet Differential Pressure Transmitter, 0-50 psid, 3-V Manifold, 4-20 mA, Viton Bleed Screw Seals

The Model 230 is Setra's highest accuracy solution for monitoring differential pressure in wet-to-wet applications.  Its single diaphragm design enables a true wet-to-wet differential pressure measurement with superior ±0.25% FS accuracy compared to competitive units which calculate differential pressure using two single point pressure sensors.  The stainless steel capacitive sensor provides a highly accurate, linear analog output proportional to pressure over a wide temperature range.  The 230 is offered with an optional 3 or 5 valve machined brass manifold for ease of installation and maintenance. 
Avoid Line Pressure w/ Single Diaphragm Sensor - Unlike the competition, the 230 is a true wet-to-wet sensor with a single diaphragm construction.  The differential pressure range of a single diaphragm is not impacted by line pressure whereas dual differential pressure sensors require the individual sensors to measure gauge pressure, comparing the outputs to determine the differential pressure.
Increase the Sensors Response Time - The 230 utilizes an all stainless steel capacitive sensor which responds 20x faster than oil filled sensor and provides conditioned electronic circuitry with a highly accurate, linear analog output proportional to the pressure over a wide temperature range.