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Controlling plant air into a pressurized vessel, approx. 5 liters... Looking for - 4-20ma in, 24vdc, 0-60psi out (or other ranges), PNP and/or analog monitor output, 1/4 or 3/8 NPT, fast, precise, calibrate-able. Want alternative to SMC's ITV2030 line, which is not true analog, and cannot be bench calibrated.