Specifications:

1) Effective measuring range:
     Binocular distance: 45 - 82mm
     Left or right pupil distance: 22.5 - 41mm
2) Power supply: DC 12V 23A battery
3) Auto shut-off: automatic power off when placed flatwise
4) Size: 175mm x 85mm x 30mm
 

Each bid for 1 Pc