auto refractometer

auto refractometer /refractometer/ophthalmic refractometer Specification: Measuring Range: Spherical -20 +20D 0.12D/0.125Dsteps Cylinder -8 +8D 0.12D/0.25D steps Axis 0 180°,1°steps Pupil Distance: 45 85mm, 1mm steps Vertex Distance: 0mm, 12mm, 13.75mm Min.Pupil Size: φ2.0mm Chart: Auto fog Display: 5″CRT Monitor Print: Thermal Printer Power Supply: 100 240V,50/60HZ Dimensions: 469mm (L)×308mm (W)×522mm (H) Weight: 20kg (44 lb) feature: Simple display .The CRT Monitor gives a complete readout of measurement values and mode, indications. Auto PD measurement .The PD will be automatically calculated after both eye measurement. Easy, one-hand control .All operations, including Up\Dowm, Right\Left, Forward\Backward and Start can be easily Controlled with one hand through the control stick. Enlarged measurement range .It allows you to make measurement over a broad measurement range.This means you can even measure extreme myopia eye.