The model 14516 detector has been specifically designed to retrofit HP/Agilent Technologies 5971 and 5972 MSD systems. The 14516 is completely self contained and plug compatible with the original equipment. An electrical lead set is supplied with each multiplier. No special mounting assemblies or other hardware is required. Installation or replacement of the multiplier takes about 5 minutes once the mass spectrometer is cooled and vented to atmosphere.