Refurbished Perkin Elmer Axion 2 TOF MS (p/n MZ320045) complete with Sogevac SV40 BI vacuum pump, dual ESI probes, & Chromera PC workstation. OPTIONAL: AxION DSA module (direct sample analysis) (p/n MZ300560). Please contact us for complete system and warranty details. (Perkin Elmer Time of Flight Mass Spectrometer)