Tin Side Detector for Float

Tin side detector for Float glass, it detects which is the side with tin of any thickness Float glass.

You just have to hover the light window over the glass sheet, near an edge. The face with tin and its edge will be blurrier and whiter than the other side. When you use Float glass for fusing, it is convenient that the face with tin is faced upside down, touching the shelf of the kiln, and the face without tin upside.