Topcon KR-8900 Autorefractor

Refraction Measurement: Sphere -25 to +22D; Cylinder 0 to ±10D; Axis 0° to 180°.
Keratometry Measurement: Radius 5.00 to 10.00mm; Refraction 67.5 to 33.75D; Astigmatism 0 to ±10D.
Minimum Pupil Diameter: 2.0mm.
Internal Printer: Drop-in loading printer with multiple print formats
(ALL, AVE, GRAPHIC, SIM, CUSTOM).
Data Output: RS-232C / USB1.1.
Measurement Time: Rapid, with auto-fire capability.
Display: Color LCD.
Physical Dimensions: 275-288mm (W) x 475-509mm (D) x 450-462mm (H);
Weight: 19.6-20.0 kg.
Power: 100-240V AC, 50/60Hz. 

Key Features:
Rotary Prism Technology: Enhances measurement accuracy.
Corneal Diameter Measurement: Ability to measure cornea diameter.
Compact Design: Optimized for small examination rooms.
Connectivity: Seamless connection to other Topcon instruments and EMR systems