... of As, Se, Sb, Bi, Pb, Sn, Te, Ge, In, Model GD320N Atomic Absorption SpectrophotometerCharacteristics A Build-in computer data processing ... supplied with the instrument: Several decades of accessories including air compressor, one piece of Cu hollow cathode lamp. Gas external pipe ... are available.Software with I/O portPrinterOverall dimension & weight: Model GD320N Atomic Absorption Spectrophotometer