ARK-4000A
Feature
· Upgraded measurement engine, improves precision and repeatability, even with small pupils or unsteady fixation.
· 7” adjustable touchscreen, supports multi-angle viewing for seated or standing operation.
· Faster measurement workflow, ideal for high-traffic environments needing speed and consistency.
· Built-in printer and data export, for seamless integration with digital record systems.
· Clean, modern design, optimized for premium clinics and professional exam rooms.
An advanced upgrade from the ARK-4000, the ARK-4000A features fully automatic 3D alignment and intelligent measurement algorithms, delivering faster and more accurate results with less operator effort. Built for busy clinics and high-end optical chains.
Auto Refractometer/Keratometer










Corneal apex distance: | 0.0, 12.0, 13.75, 15.0 |
---|---|
Spherical mirror degree: | : -20.00D ~ + 20.00D (VD = 12mm, 0.01, |
Cylindrical diopter: | 0.00D ~ ± 6.00D (0.06, 0.12, 0.25 units) |
Axis position: | 0 ° ~ 180 ° (1 ° unit) |
Astigmatism symbol: | : -, +, ± |
Pupil distance: | 10 ~ 86mm |
Minimum pupil diameter: | 2.0mm |
Measurement completion time: | <0.5 seconds |
Pupil diameter: | 2.00-8.00mm |
Measure light energy: | <30uw (ensure measurement safety) |
Cornea curvature radius: | 6.50 ~ 9.50mm (0.01mm accuracy) |
Cornea diopter: | 35.90D ~ 51.90D (when the corneal equivalent diopter is 1.3375) |
Stored data: | 10 measurements each |
Visual target: | Guided cloud map |
Data transmission: | RS32\bluetooth, WIFI and others transmission |
Display: | 9-inch screen (adjustable viewing angle) |
Printer: | 57mm thermal printer |
Power supply: | AC 100 ~ 240V, 50 / 60Hz, wide power supply |
Net weight: | 17 kg |
Gross weight: | 22.5 kg |
Packing size: | (L) 730mm x (W) 400mm x (H) 585mm |