... Absorption Spectrophotometer Making the characteristic concentration of As, Se, Sb, Bi, Pb, Sn, Te, Ge, In, Model GD320N Atomic Absorption ... wavelength drift caused by the variation of temperature (with the function of the eliminating the affection of wavelength drift on the base line stability) ... .Software with I/O portPrinterOverall dimension & weight: Model GD320N Atomic Absorption Spectrophotometer