Name:VT-6 View Tester
 
Technical Parameter 

Sight Switch Ran ge：∞～380mm（distance of Optical center is64mm时）
Front Chin Test  Range：0～16mm
Distance (from cornea vertex to the lens surface) 16mm
Standard Accessories Lens two pieces of Auxiliary Cylinder -2.00m-1 and -0.12m-1 respectively
Standard Accessories one piece of M2 Hexagon wrench , one piece of a Myopia Standard Card, two piece of Myopia Standard Card , one piece of standard card holder , a dust cover
size 338(L)×99(W)×292(H)mm