... Range: T:0~199.9%T,A:0~1.999Abs,F:0~9999,C:0~9999Photometric Accuracy: 0.5%(τ) (NBS ... %T/5minSELON SE-722 VISIBLE SPECTROPHOTOMETER, Wavelength setting, multi-point curve calibration Visible Spectrophotometer, portable spectrophotometer, spectrophotometerFEATURES:1,Wavelength ... setting by keyboard-input.2,Single-point curve calibration and multi-point curve calibration ( Up to 12 points).3 ...