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Sales Director: John Gao

Cellphone: +86-13618377608


WhatsApp: +8613618377608

Wechat: hyvisionstar

Address: 28-2, 5, Number 99, Hongcaofang Street, Shapingba District, Chongqing 400042, China

FKR-8900 Optometry Auto Ker-Refractometer

Model: KR-8900

Sphere: -25.00 ~  22.00D (0.12/0.25D steps) (VD=12mm)

Cylinder: -8D – 8D ( 0.12/0.25D Step)

Axis: 0~180°(1° Step)

Pupil Distance: 45 ~ 85mm (0.5mm Step)

Vertex Distance: 0mm, 12mm,13.75mm

Keratometry: Integrated Keratometer


FKR-8900 Auto Ker-Refractometer has combined function for measuring diopter and corneal curvature. It has three measurement modes to switch. It is designed with import thermal printer and TFT color LCD screen, which makes is easier to use. Besides, FKR-8900 Auto Ker-Refractometer is energy-saving as the monitor can be automatically turned off when there is no operation for 5 minutes.


Trusted Services: 1. Video chat to check our factory and products; 2. Free online technical support and training; 3. Free online installation support; 4. 1-3 Years quality warranty; 5. Lifetime after sales support.

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Chat on WhatsApp: +8613618377608

FKR-8900 Auto Ker-Refractometer 


Combine measurement to diopter and corneal curvature

The precedent optical technique, consistent measurement and accurate figure;

The most advanced technique of a graph edition, make the graph measured quickly and clear.

Humanized focusing design to make grasp focus more quickly.

FKR-8900 Auto Ker-Refractometer Pictures:

FKR-8900 Auto Ref Keractometer

FKR-8900 Auto Ref Keractometer

FKR-8900 Auto Ref Keractometer Monitor FKR-8900 Auto Ref Keractometer Joystick
5.7″ TFT Color LCD Monitor Smooth Joystick
FKR-8900 Auto Ref Keractometer Control Panel FKR-8900 Auto Ref Keractometer Printer
Control Panel Built-in Thermal Printer
FKR-8900 Auto Ref Keractometer Chinrest FKR-8900 Auto Ref Keractometer Terminals
Adjustable Chinrest External I/O Terminals

Body Parts

FKR-8900 Auto Ref Keractometer Parts FKR-8900 Auto Ref Keractometer Parts

Technical Specification:

Measurement mode K/R Measure diopter and corneal curvature
REF Measure diopter
KER Measure corneal curvature
Diopter measurement Vertical distance 0mm, 12.0mm, 13.75mm
Sphere -25.00 ~  22.00D (0.12/0.25D steps) (VD=12mm)
Cylinder -8.00 D ~   8.00D  (0.12/0.25D steps)
Axis 1~ 180  (steps 1 )
Pupil distance 45 ~ 85mm (accuracy 0.5mm)
Minimum pupil diameter ∮2.0 mm
Charter Auto fogging method
Corneal Measurement Corneal curvature radius 5 ~ 10 mm (0.01mm steps)
Corneal diopter 33.00 ~ 67.00 D (0.12/0.25D steps)
Corneal Astigmatism 0.00 ~ – 15.00D (0.12/0.25D steps)
Axis 1° ~ 180 ° (steps 1 °)
Corneal diameter 2.0 ~ 12.00mm
Product Specification Display 5.7″ TFT color LCD screen
Printer Import thermal printer
Energy save Auto monitor energy save, no operation for 5 minutes
Power supply AC 100~ 240V, 50/60HZ
Dimension/weight 275 (W)* 475 (D) * 435-465(H)mm/ 18kg


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