Main specifications *Light source: Cold Light Source *Wavelength range: 340---690nm *Absorbance range: -0.3Abs---3.5Abs *Absorbance resolution: 0.001Abs(display)0.0001Abs(inside) *Stability: d 0.005Abs/20min *Cross contamination: d0.5% *Flowing colorimetric cell:10mm 32ul *Temperature control: 25 or 30 or 37,room temperature *Once injection: 100--2000ul *Display:240*128 lattice LCD *Printer:Build-in thermal sensitive printer,the width of print paper is 110nm. *Interface:Standard RS232 interface *Power supply:86V--264V 50Hz/60Hz(auto transform)