Near Visual Acuity Chart For Testing 30cm Mini Eye Vision Chart Optical Tool

Near Visual Acuity Chart

Description:
1.Fashion modeling, ultra-thin design, double-sided display
2.LED display, two brightness adjustment, energy saving
3.Handheld alone or in use while charging
4.Applicable to clinical medicine and vision care
5.The main test hyperopia and presbyopia
6.With base and accessories, easier to use

Parameter:
1. The end of eyesight confession average brightness: 80-320cd / square meter
2. vision confession bottom brightness uniformity: not less than 0.85
3. Output voltage: 4.2 V, 0.5 A
4. Scope: 30cm detect myopia
5. Record the vision methods: You can choose LogMAR, decimals, fractions
6.Size: 21.3 * 12 * 1.5cm
7.Package weight: 0.445kg

Package Included:
1 x LED Optical Visual Tester
1 x Adapter
1 x Battery
1 x Base
1 x Hang Screw