Migration: minor from high to low port. Sensing element: piston. Wetted parts: body material, SS spring, ceramic magnet and seals. Case material: engineered polymer. Dial size: 2.5 (square), 4.5" (round). Mounting: direct, front flange, 2" pipe and surface mounting. Maximum working pressure: 3000 Psig for Aluminum and Brass, 6000 Psig for SS. Maximum process temperature: 200 degree F. Seals: Buna-N. Lens: Plexiglass (acrylic). Connection: 1/4" NPT(F) Std. Porting: In-line. Over range protection: Up to the MAWP from high and low side. Protecting for gauge and switch: NEMA-4X / IP65. Applications includes: Filter monitoring, pump performance, level measurement, Flow, flow direction, pressure monitoring, Flow rate, strainer monitoring, condition monitoring of heating/cooling system, Air filter and collector/bag filter monitoring, collector/bag filter monitoring, blower performance.