This radian apparatus is specially designed for measurement of optical lenses’ curvature. Special coatings on the pins could prevent damage of lenses. Easy to operate, read, and calibrate. It is well-made of Aluminum and not rusts. A cap will protect pins from being destroyed. Custom-made LOGO can be printed on the dial of radian clock.

Specifications

1. Easy to operate, read and calibrate

2.Testint lens index of refraction

3. Measure scale:  +/-20mm

4. Accuracy:  0.25mm

5. Size:  70x107x22mm

6. Weight:  81.5g

7. Material:  Aluminum and stainless steel

8. Packaging Details: 1 pc/box,60pcs/carton,  Carton size:35x33x33cm,  Gross weight:11kgs