Agilent 5973 Mass Spec Detector 

Item was Working but was then returned. No idea if it works or not. Selling AS-IS. No Returns

The Agilent Technologies 5973 Network MSD is a transmission quadrupole mass spectrometer for qualitative and quantitative analysis by electron ionization (EI), positive chemical ionization (PCI), and negative chemical ionization (NCI).  The Agilent 5973 series MSD offer reliability, ruggedness, and long service life and are considered the workhorse of the mass spec world. 

• The 5973N is available in six configurations that differ in their capabilities.
• The 6890/5973N systems can be configured with additional accessories to adapt them for various applications.
• The MS Productivity ChemStation Data System can process data from both the MS and conventional GC detectors.
• With devices such as the programmable temperature vaporizer (PTV), overall sensitivity can be dramatically increased.