3051S Rosemount 3051S Coplanar Pressure Transmitter. Pressure Transmitter is designed with the patented Coplanar technology and is the no-equal solution for pressure, flow and level measurements. This scalable platform seamlessly integrates with manifolds, primary elements and seal solutions and optimizes performance for accurate differential, gage and absolute pressure measurements. With the SuperModule™ platform, this transmitter resists overpressure and line pressure effects to maintain unmatched performance.