Experience Unsurpassed Sensitivity and Unparalleled Stability with the New Clarus SQ 8 GC/MS. PerkinElmer's revolutionary Clarus SQ 8 delivers world-leading performance and has leapt to the front of the pack in GC/MS. No instrument comes close to its detection limits, mass range and long-term stability. Nothing delivers greater confidence in your results, or greater productivity in your lab.