... .2%T Photometric Range -0.3-3A,0-200%T,0-9999C Stability± 0.002A/h @ 500nm Stray Light≤0.1%T Data Output PortUSB Printer ... , Socket Tungsten Lamp Design, Stable Base Spectrometers, spectrophotometer, spectrometersFeatures 1,Large LCD screen(128x64Dots).Can display total 200 groups of data,5 groups ...