SBDY-1P Digital Whiteness Meter's video

Yuefeng instrument SBDY-1P digital Whiteness Meter measuring range 0~100%, accuracy 0.1, zero drift ≤ 0.1/10min, repeatability ≤ 0.2, measurement aperture Φ30mm, power supply 220V ± 10%, light source D65, illumination conditions 45/0, display mode digital or liquid crystal display, measurement direction R457 blue light whiteness, indication stability ≤ 0.2/10min, power 35VA, data interface RS232 print interface.