# Measuring range: 0 to 199 # Whiteness formula: blue whiteness WB = R457 # Source: LED light source # According to test conditions: compliance with the provisions of GB/T3978 45/0 # Display: LCD liquid crystal display # Measuring aperture: ¢ 15 # Minimum Indication: 0.1 # Measurement repeatability: 0.2 # Indication error: ≤ ± 1 # Environment: temperature (5 ℃ ~ 35 ℃); humidity (≤ 85% RH) # Transportation, storage conditions: temperature (-20 ℃ ~ 50 ℃); humidity (≤ 90% RH) # Power supply: DC 1.5V × 5 AA alkaline batteries; # Configuration: Portable aluminum box
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