... 2. Based on all digital integral Lux, photometric and colorimetric measurement Digital Lux Meter is based on all digital integral lux, photometric and ... condition: vertical) • Relative spectral sensitivity error of digital sensor: f1<±5.5% • Dynamic range: 0.1-50,000 lx, Accuracy: <±4% • ... : ±20K (CIE Standard Source A, 500 lx)• Temperature effect: -0.1%/°C• Refreshing frequency: 1n/s(>=10 lx ), 1n/3s ...