Hitachi FT01 User Manual page 11

Install the Finger Touch Unit in the middle of the right and left edges of the
projector display screen.
Set the gap between the laser output port of the Finger Touch Unit and the
projector display screen to 50 to 100 mm.
screen edge by at least 50 mm.
50mm
Do not install the Finger Touch Unit on a wall.
This could cause the wall paint or wallpaper to peel off.
Make a space of 20mm or more for attaching and detaching the cover
when the Finger Touch Unit is fixed by the double-sided tape or the
FT-01
20mm
50~100mm
CAUTION
11
50mm