This auto refractometer is faster, easier, and more accurate with measurements. This includes an Auto Fogging System as well as Auto PD measurement. This Auto Refractor is ideal when dealing with non-communicative people such as young children or those with disabilities.
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Refractometry:
Sphere: -20.00~+20.00D (VD+12) 0.125D steps
Cylinder: -8.00~+8.00, 0.125D steps
Axis: 0°~180°, 1° step
Pupil Distance: 45~85mm, 1mm step
Pupil Size: 2.0mm
Vertex Distance: 0mm, 12mm and 13.75mm
Display: 7" TFT LCD Monitor 
Thermal printer
Power Supply: 220V, 50Hz
Weight: Approx 20kg (44 lbs)
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Model: HR-20.6500