... .5 Optimized optics and large scale ingegrated circuits design, light source and receiver from world famous manufacturer all add up ... Photometric Reproducibility: 0.2%TWorking Mode: T, A, C, EPhotometric Range: -0.3-3AStray Light: ≤0.1%T(NaI, 220nm, NaNO2 340nm ... 001A (at 500nm, after warming up)Display: 6 inches high light blue LCDDetector: Silicon photodiodePower: AC:220V/50Hz, 110V/60Hz, ...