W0901 Two sides 40cm near chart vision,

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W0901 LED Two sides

Product Abstract:

40cm near chart vision,Amsler backside. USD46/PC

Product Description

Device name:Vpal(Near visual acuity chart)
Test distance:40cm
Two sides near chart vision,E charts and Amsler backside.

Packing list:
Open the shipping carton,ascertain that you have:
1.One near visual acuity chart.
2.One Lithium battery.
3.One USB cable.
4.One power adapter(charger.)
5.One stand.
6.One point.

Power supply:
1.Lilthium battery:3.7v
2.Battery charger(power adapter):
Input:AC 11~240V,50~60HZ,output:DC 5V,1.2A
Charging time:5 hours,please turn off the LED when charging.
3.The device can be powered by the computer with the USB cable.

Near visual acuity measurement:
1.Put the VPAL on the stand,adjust the gradient.
2.Turn on the device.
3.Use the cord to determine the test distance of 40cm from the eye.

Concerns:
1.When not in use,please power off the device.
2.Keep the surface of the Vpal clean.
3.Use a soft and dry cloth for cleaning.

Technical specifications:
1.Test distance:40cm
2.Length of the cord:40cm
3.Packing Dimensions:18511511mm