Fluke 750P Series of Pressure Modules Hi Side Media2:316 SS Lo Side Media2:N/A Gage pressure modules have one pressure fitting and measure the pressure with respect to atmospheric pressure. The 750P Series pressure modules are highly accurate with specifications that apply form 0"C to 50"C; a feature that sets them apart form other pressure calibrators. Each module has its own microprocessor; allowing it to run the measurement circuitry and to communicate digitally with a calibrator. Reference Uncertainty4:" 0.0175%