The Model CPT 6180 from Mensor Corp., San Marcos, TX, is available in measuring ranges from 15 to 6000 psi with an uncertainty of 0.01%intelliscale-50 and a calibration stability of 365 days. The 0.01%intelliscale-50 term denotes 0.01% uncertainty of reading with the %of reading applying to the portion of the range above 50% F.S. Below 50% of F.S. the uncertainty is 0.005% F.S. Features include 250 Hz continuous output mode and the ability to read out pressure via RS-232, RS-485, or in a query/response mode.