Quick Details Place of Origin:Zhejiang China (Mainland)Brand Name:WeizhenModel Number:WZ-VC-3Screen size:21.5"Screen ratio:TFTScreen type:16:9Visible angle:408.24mm x 222.15mmSignal response time:5msEffective distance:2m~5m(adjustable)Features optometry visual chart This unit was produced by using advanced technology and import material. good look and properties, safe and reliable. Specification 1. Voltage: AC100V-240V/50Hz/60Hz 2. Power: 45W / 60W 3. Max screen resolution: 1440900 / 16801050 4. Screen size: 22 inch 5. Unit size: 56.5x41.5x16 6. Unit weight: 5 kg / 6.8 kg 7. Remote operating scope: ≥8M
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