Functions:
touch and colorfrl LCD screen clearly shows status and results.
Quick measurement and accurate results.
Various Ienses measured available.
Auto memory and auto screen save.
Slim and compact design.
Build-in printer. Build-in UV part

Specifications

Sphere  measuring range:  -25~+25D unit0.01/0.12/0.25D steps
Cylinder measuring range:  -9.99~+9.99D unit0.01/0.12/0.25D steps
Axis measuring range : 0°~180° unit1° steps
Add measuring range : 0~+9.99D unit0.01/0.12/0.25D 
Prism measuring range:  0~6 unit0.01/0.12/0.25
PD measuring range: 40~86mm unit0.5mm 
Print  thermal printer 
Power supply AC100 120(V)/200 240(V) 50/60HZ 50VA 
Dimensions  220(W)*320(D)*430(H)mm