Features:

1. Internal reading

2. +/- 25D measurement

3. Wide field of vision observation

4. AC/DC

Technique Parameters :

1.) Ranges of Measurement: 0 to +/-25D
Minimum Ourter Reading :0.125D
Minimum Inner Reading: 0.125D graduation up 0 to +/-5D, and 0.25D graduation over+/-5D to +/-25D

2) Cylinder Axis Range: : 0~180degree step 1 degree
3) Primatic Power Range : 0~5△ prism diopters, 1△ graduations
                   with Prism compensation device 0-20△ prism diopters, 1△ graduations

4) Primatic Base Angle : 0~180 degree
5) Eyepiece Adiustment : +/-5D
6) Dimension of Objective Lens : 16~86mm
7) Overall Size : 275mm x 120mm x 430mm
8) Weight :4Kg
9) Ligjting Bulb : 220V/-3V 3W or 110V/-3V 3W

10)CE & FDA Certificate