Refractor and auto refractor RT-3000: Manual refractor Sphere measurement range: -19.00D to +16.75D Cylinder measurement range : 0 to +/-6.00D Wide 40° field of view Silent, continuous and fast lens scrolling Pupil distance adjustment for more precise examination Automatic convergence and illumination for near vision Programmable for automatic examination sequence Data transfer to other NIDEK refraction instruments Integrated thermal printer Standard accessories: Proximity point card with holder and rod, protective cover, face shield and lens case. Standard lens accessory: Two. 12D and -2.00 cylindrical lenses. Two plano lenses for front aperture sealing Dimensions: 345× 350× 155(mm) Net weight: Approx. 4.5 kg Warranty: 1 year parts and labor Ref : IBSLTD04