Glasses Optometry Double-sided Display LED Eye Chart Myopia Vision Tester Y

Description

Specification:
Vision chart average brightness on white background: 80-320CD, square meter
Vision surface brightness uniformity: ≥0.85
Charger input voltage:
AC 100-240V
Output voltage: 4.2V, 0.5A
Measuring distance: 30CM
Size: 213x120x15MM
Package weight: 0.445KG
Payment Way:
Please know we just accept paypal payment, thank you!
Shipping Details:
We will send out the package during handing time, you can receive it in expect delivered time normally, if not, please contact us, we will be responsible for it, thanks!
Return Details:
We offer 30 days money back guarantee return policy, however, our warranty does not extended to any products that are physically damaged or that are not under normal operating conditions as a result of misuse or improper installation on the buyer/user's part.
About Us:
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