Measuring Range Density 0.00D-2.50D
Dot Area 0%-100%
Measuring Geometry 0°/45° ANSI PH2.17
Aperture Diameter 3.0mm (1.6mm optional)

Repeatability ±0.01D
Display Supertwist liquid crystal(32×80 dots)
Accuracy ±0.02D
Power Supply 7.6V rechargeable Battery Pack
Recharge Time 14 hours
Warm up Time None Weight 1.75 lbs (800g)
Operating Temperature 41°F-104°F (5°C-40°C)

Data Output Port RS-232
Dimension 7.5x4x3.25 in.(190x102x82mm)
Output Connector RJ11