The tester visually indicates which side of the glass is the tin bath side of float glass. You look through the glass pane at the viewing window and the light appears clear violet or milky violet. A simple device for simple applications.
In glass processing, it is often important to know which side of the float glass pane was in contact with the tin bath during the production process. The tester is suitable for use in glass fusing. The built-in UV lamp can be easily replaced and renewed.
Application note:
Observe the operating instructions. The unit should not be left switched on permanently as the maximum operating time of the battery is about four hours
