Model: ARK-8500
The ARK-8500 is a high-speed Hartman-type auto refractometer designed for fast and stable eye measurement. The flip monitor supports flexible viewing, and the device provides automatic horizontal, vertical, and back-and-forth motorized focusing. A built-in thermal printer with auto-cut ensures efficient reporting.

Auto horizontally, vertically, and back force motorized focus, to find the optimal measurement position, eliminating the need for manual fine-tuning and ensuring fast, precise readings.

It allows doctors to flexibly adjust the viewing angle according to their position, and is also suitable for confined spaces or multi-angle operating environments.
| Specification | Details |
|---|---|
| VD Range | 0.0, 12.0, 13.75, 15.0 |
| Spherical Range | -20.00D ~ +20.00D (VD = 12mm, 0.01, 0.06, 0.12, 0.25 increments) |
| Cylinder Range | 0.00D ~ ±10.00D (0.06, 0.12, 0.25 increments) |
| Axis | 1° ~ 180° (1° increments) |
| Cylinder Symbol | -, +, ± |
| PD | 10 ~ 86mm |
| Mini Pupil Size | 2.0mm |
| Average Measurement Time | <0.5 seconds |
| Pupil Distance | 2.00–8.00mm |
| Max Brightness | <30uw (safety assured) |
| Curvature Radius | 5.0 ~ 10.0mm (0.01mm increments) |
| Refractive Power | 33.00D ~ 67.0D (corneal equivalent diopter = 1.3375) |
| Corneal Power | 0.00D ~ -15.00D (0.06D / 0.12D / 0.25D increments) |
| Data Save | 10 groups Left/Right eye |
| Axis (Corneal) | 1° ~ 180° |
| Target | Auto Fog |
| Monitor | 9-inch TFT Touch Screen (Flip) |
| Printer | 57mm width, auto cut |
| Power | AC 100~250V, 50/60Hz, wide voltage |
| Net Weight | 22 kg |
| Gross Weight | 26.5 kg |
| Packing Size | 680mm (L) × 400mm (W) × 640mm (H) |
Trusted Services:
1. Video chat to check ARK-8500 High Speed Auto Refractometer.
2. Free online technical support and training.
3. Free online installation support.
4. 1-3 Years quality warranty.
5. Lifetime after sales support.
6. Most products are CE and ISO 13485 certificated.
7. Free input voltage and plug customization for electrical machines.
8. Fast worldwide shipping, 5-10 working days delivery for most countries.
9. Partial prepayment is acceptable before shipping.
10. Discount price, non-branded or customized products can be offered for distributors.
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