VTube-LASER Datasheet Guide for ROMER Absolute Scanner Arms
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The above document is for the HEXAGON Absolute Arms (version 8) released in August, 2018.
You can also download a datasheet for the 7-series ROMER Absolute arms here.
Also, download the HEXAGON brochure for the model 8 Arms here.
The HEXAGON brochure contains scanning specs on the next to the last page in the red box.