Coaxial reflective optics and very fine light points of approximately 1mm x 5mm enabling highly accurate detection;
Optimal LED automatic selection function: the best color match can be selected from the three colors of R-G-B LEDs;
Built-in RGB tri-color light source color mode and color scale mode;
Built-in 12-bit A/D converter enables high precision judgments with resolutions up to 1/4,000;
4-digit display to confirm the amount of light input to the color scale and bottom color.