| Measurement Method |
Cornea reflection light coincidence method |
| Range of data display |
Binocular pupillary distance: 44-83mm |
| Left or right pupillary distance: 22-41.5mm |
| Effective range of measurement |
Binocular pupillary distance: 45-82mm |
| Left or right pupillary distance: 22.5-41mm |
| Indication error |
<0.5mm |
| Rounding error |
<0.5mm |
| The scope of the focus point |
30cm﹣∞ |
| Power source |
Voltage: DC 3V, Specification: AA battery, Quantity: 2 Or 4 pieces |
| Time for automatic shut-off |
1 minute after stopping operation |
| Dimensions |
214mm(L)×150mm(W)×51mm(H) |
| Weight |
0.6kg |
