Optional Scales for: Also see very bottom- compatible with.

Fast and easy to install thanks to a clever guided installation system.
Sturdy, scratch-resistant hard-glass disks are used for the high-quality, ultra-modern Tech-Line Duo-Scales. During the development and manufacture of these scales nothing has been left to chance!
The duo-scales are, as its name states, two scales in one. You can find the common visible macro scale (Ø25 mm) as well as a micro scale (Ø2.5 mm) in the bottom half of the disk. Based in a black plastic ring, the scale floats/hovers over the object which prevents scratches.
The scaling, which is made out of hard-chrome, has purposely been applied on the underside of the hard-glass disks to prevent parallax error.
Five Scales to Choose from (Scale Number correlates to the position of the pictures):
More details on each scale are to follow and until then can be provided on request.