Tempat asal
Zhejiang, China
Measurement method
Optical density difference at two wavelengths
Measurement area
2 mm*3 mm
Subject thickness
1.2 mm maximum
Light source
2 LED elements
Receptor
1 SPD (silicon photodiode)
Display
LCD panel showing 4-digit measurement value
Display range
-9.9 to 199.9 SPAD units
Power source
2 AA-size alkaline batteries
Battery life
More than 20,000 measurements
Dimensions
78 (W) *164 (H) *49 (D) mm