Bios International”sprimary gas flow measurement solutions are designed for MFC and MFMmanufacturers, OEMs, and end-users in the semiconductor and processcontrol industries. The systems feature hyper-portable piston proversin the one SCCM to 50 SLM range, with linear and reproducible gas flowmeasurements at +/-0.4 percent and +/-0.15 percent of reading. Anoptional integrated control device allows users to communicateseamlessly with most industry-standard MFCs and MFMs, creating setpointcommands, performing comparisons to primary standards, and automatingcalibration of up to five instruments at a time. Optional softwareallows users to  automate MFC and MFM calibrations.