ZN-240 LED Chart Vision
23-inch LED visual-acuity chart with remote control and chart selection for 1–6 m testing distances. View specifications and enquire with Kathmandu Ophthalmic Suppliers.
Model: ZN-240 · Chart Projector
Specifications
| Display | 23-inch TFT LED |
|---|---|
| Resolution | 1920 × 1080; 16:9 |
| Brightness | 250 cd/m² maximum |
| Contrast ratio | 1000:1 |
| Response time | 5 ms |
| Viewing angle | Horizontal 170° / vertical 160° |
| Visual area | 513.8 × 291 mm |
| Testing distance | 1–6 m |
| Remote-control distance | At least 8 m |
| Chart types | Letter, children, colour-blindness, E, C, Worth four-dot, numeric, cross, contrast-sensitivity, red/green, Maddox rod and astigmatism charts |
| Vision records | Imperial fraction or decimal |
| Power supply | AC 110–220 V, 50/60 Hz |
| Power consumption | 56 W |
| Standby power | Less than 2 W |
| Dimensions | 590 × 365 × 60 mm |