... All spectrophotometer are intended to be utilized for research, development, quality control, etc. primarily in the fields of ... solvent-resistant tactile keypad 2. Features for spectrum software (Optional):Basic Mode Multi-WavelengthAbsorbance, %T or Concentration ... /Stability /Data outputDigital, USB port, LPT parallelSpectrum Software /Power110V 10% 60Hz 60VAStandard sample holder4-position sample ...