Optometry Equipment Cheap Handheld Refractometer
Optometry Equipment Cheap Handheld Refractometer
Features:
1. User discussion board: Provide interactive communication platform between users, experts and company.
2. Ophthalmic knowledge board: Professional knowledge learning platform of eye knowledge, vision care and so on.
3. Product operation method and introduction: Provide correct product operation method.
4. User board: User can input personal vision information; Forecast user’s vision direction according to historical data, provide vision care knowledge and glasses reference information, etc., and the vision data will permanently preserved for users.
Specifications:
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Suitable for |
Children, adolescents and adults |
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Color |
Chain Red(R); Sapphire(B); Harvest Yellow(G); Pink Dream(P); Roland Purple(V); Titanium crystal Gray(S) |
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Spherical range |
-12D to +6D |
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Spherical degree wide interval |
0.5D |
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Spherical degree of tolerance |
±0.25D |
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Lighting |
LED backlight, and the light is uniformity, constant, not reflective and not dazzing. |
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Switch mode |
LED lamp touch switch, instrument will shut down automatically after three minutes’ shelving. |
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Power |
Three 7# batteries(AAA) |
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Service |
Professional service website. Users can input personal vision information; Forecast user’s vision direction according to historical data, Provide vision care knowledge and glasses reference information, etc. |
|
Net Weight |
299g |
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Packing size |
200mm(L)×100mm(w)×65mm(H) |
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