The 5977A series GC/MSD features a new specification metric, the Instrument Detection Limit, which can improve true system-level performance in practice. It also uses TwisTorr 304 FS turbomolecular pump for light gas operation. The 5977A series GC/MSD runs on MassHunter Workstation software. Suited for high-productivity GC/MS, MassHunter provides instrument control, coupled with automated data acquisition as well as qualitative and quantitative data analysis and reporting. MassHunter for MSD systems also includes a full version of MSD ChemStation to ensure compatibility with previously purchased instruments.