... nice appearance,easy operation 4,Single &double wavelength DG5031 Semi-automatic Elisa Microplate Reader Main Specification: ModelDG5031 Light sourceTungsten halogen lamp ... channel)Computing ModelQualitative(S/CO,P/N,N/P,Inhibitory rate, etc)and Quantitative analysisRepeatabilityStandard coefficient of variation CV≤1% ... :size:39*33.5*20cmGross weight:9KG DG5031 Semi-automatic Elisa Microplate Reader