WH0901 LED Nera visual Acuity Chart
Product Description
| specifications: | Tes Distance :25cm,30cm,35cm,40cm
Power Supply:Four AAA batteries,or AC power(100-240V),or computer(by USB cable).
Size:196mmX145mmX10M |
| Advantages: | this product is double-sided shown,the selectable charts on the back is in the attached map. |
| Ship Date: | 18 days |
| Standard Met: | CE |
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