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Binocular pupillary distance | 45~82 mm | ||
Left or right pupillary distance | 22.5~41 mm | ||
Indication error | ≤0.5 mm | ||
Rounding error | ≤0.5 mm | ||
Voltage | DC 3V | ||
Time for automatic shut-off | About 1 minute after stopping operation, or turn it off manually | ||
Distance of target | 30 cm~∞ | ||
Specification | 5# AA battery |
Processing time
According your order list. we will supply delivery time .
Commonly is 5-7 work days after we confirm payment
Shipping time
By Express : 3-7 days . Door to door service
By Air : 3-7 days . (the goods arrival at your local air ports )
By sea : 30-40 days (the goods arrival at your local sea ports )
PS : by air or by sea, if you need door to door service, please tell us . we will help you checking the extra door to door cost.
one year
For ensuring all the items are in good quality, we will test all products before the packages were sent out. Once the machine have some question, please don't worry. kindly send us some images of the situation , Video and machine series, and explain the question in where . we will supply solution to you deal soon.
If in Warranty, some spare parts broken in the Use. kindly supply picture or video , and machine series number .
We will send the spare parts by express to you soon.. and we bear express cost .
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