detail
technical parameters:
measurement range: 0 ~ 199
whiteness formula: blue light whiteness wb=r457
light source: led light source
lighting conditions: comply with gb/t3978 regulation 45/0
display: lcd display
measuring the aperture: 15 ￠
minimum: 0.1
measurement repeatability: 0.2
error of indication: ≤ & plusmn; 1
using the environment temperature (5 ℃ ~ 35 ℃); humidity (& le; 85% rh)
transportation and storage environment: temperature (20 ℃ to 50 ℃); humidity (& le; 90% rh)
power supply: dc 1.5v× 5 aa alkaline dry batteries;
configuration: portable aluminum alloy packing case