| Spherical measurement range | -14D to +14D, increments (0.25D) |
| Cylindrical measurement range | -7D to 0D, increments (0.25D) |
| Axis measurement range | 0 to 180 degrees, with 1-degree increment |
| Minimum pupil diameter | 2.5 mm |
| Vertex distance | 19.5 mm |
| Patient age range | Above 5 years |
| Internal fixation | Low spatial frequency sinusoidal grating with Gaussian envelope |
| Battery life | 8 hours with normal usage when fully charged |
| Display / connectivity | 3.5” color touch screen / USB and Bluetooth |
| Technology | Wave-front sensing |
| Power source | AC 100 to 240 V, 50 / 60 Hz |
| Measurement time | <5 seconds per eye |
| Weight / dimension | 650 g / 8.9” X 7.2” X 2.9” |
| Internal storage memory | 300 measurements |
| Ambient lighting | No Specific Constraint |
| Battery pack | Lithium-ion battery 3.6V, 6800 mAh |
| Additional feature | Telemedicine compatible |
| US FDA Listing | Class 1 |
| Optional accessories | Bluetooth printer, portable stand |
