| After-sales Service: | 24 Months After Delivery |
|---|---|
| Warranty: | 2 Years |
| Type: | Gem Refractometer |
| Style: | Handheld |
| Application: | Auto Refractometer Keratometer |
| Shell Material: | Plastic |
| Customization: |
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Suppliers with verified business licenses
Audited Supplier Autorefractometer Handheld Auto Refractometer Portable/Portable Ophthalmic Refractometer Portable Refractometer/Ophthalmic Instrument Portable Auto Refractor
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Technical Specification |
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Model |
HAR-880 |
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Mode |
Infant mode |
Adult mode |
Myopia Mode (HAR-880 only) |
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Sphere range |
-6.0D~+8.0D |
-6.0D~+8.0D |
-9.0 to +2.0D |
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Sphere interval |
0.25D/0.1D |
0.25D/0.1D |
0.25D/0.1D |
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Sphere tolerance |
±0.5D |
±0.5D |
±0.5D |
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Cylinder range |
-3.0D to +3.0D |
-3.0D to +3.0D |
-3.0D to +3.0D |
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Cylinder interval |
0.25D/0.1 |
0.25D/0.1D |
0.25D/0.1D |
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Cylinder tolerance |
±0.5D |
±0.5D |
±0.5D |
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Axial of astigmatism range |
1°~180° |
1°~180° |
1°~180° |
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Axial of astigmatism interval |
1° |
1° |
1° |
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Axial of astigmatism tolerance 0.25D-1.00D, 1.25D-3.00D |
±10°,±5° |
±10°,±5° |
±10°,±5° |
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Working distance Adult/infant mode , Myopia mode (HAR-880 only) |
335±10mm,268±10mm |
Confidence level |
10 |
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Output of laser radiation |
150 to 200um |
Wavelength |
850±20nm |
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Data acquisition time |
2s/eye |
Battery Voltage |
d.c. 11.1V |
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Battery life |
More than 6 hours of continuous usage |
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Low-battery warning |
Indicates 15 minutes usage remains |
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Distance measurement |
Automatic, with audible and visual hint |
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Suppliers with verified business licenses
Audited Supplier 
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