Ultrassist Snellen Eye Chart, Pocket Size Eye Testing Chart 6 Feet 3.9x7.3 inch for Visual Acuity Measuring
| Country | USA |
| Binding | Electronics |
| Brand | Sonoff |
| Feature | Quick installation. Can match the base to be stored on the wall with double-sided 3M tapes or screws. |
| Label | SONOFF |
| Manufacturer | SONOFF |
| MPN | IM190328001 |
| PartNumber | IM190328001 |
| Publisher | SONOFF |
| Studio | SONOFF |
| ReleaseDate | 0000-00-00 |