... Based on all digital integral Lux, photometric and colorimetric measurement Digital Lux Meter is based on all digital integral lux, ... to be avoided in current colorimeter. The digital sensor has large dynamic range so that there ... (test condition: vertical) • Relative spectral sensitivity error of digital sensor: f1<±5.5% • Dynamic range: 0.1- ... halogen lamp, CFL, HID, LED, LCD screen Digital Lux Meter