... and reagent needle's inner and outer can Fully automatic cleaning, thoroughly to reduce the carry-over ... 3.5AResolution0.0001Abs,SyringeIndependent sample needle, reagent needle ,automatic liquid sensor ,Trace volume change .Reaction timeabout ... power switch, can be refrigerated 24 hoursOperation Systemfull automatic, DiscreteCalibration linearity/Non-linearity calibrationSoftwareWindows 2000 or ...