Internal reading
25D measurement
Wide field of vision observation
AC/DC

Specification:

1) Ranges of Measurement: 0 to 20D
Minimum Ourter Reading 0.125D
Minimum Inner Reading 0.125D graduation up 0 to 5D,
And 0.25D graduation over 5D to25D
Minimum Digital :0.01D

2) Cylinder Axis Range: : 0~180

3) Primatic Power Range : 0~5Δ prism diopters Δgraduations
Prism diopters,Δgraduations

4) Primatic Base Angle : 0~180

5) Eyepiece Adiustment : 5D

6) Dimension of Objective Lens :20~85

7) Overall Size : 220mm x 120mm x 430mm

8) Weight :4Kg

9) Ligjting Bulb : 220V/-3V 3W or 110V/-3V 3W

10)CE Certificate