Use an actual stud finder.
How to hang a projector screen on a wall.
Follow the instructions that come with the mount kit and the projector.
Attach one side of the projector screen to the screw in the wall and then raise the other side to be level with the floor using a bubble level tool to make sure that it is level.
You will need to mark this area with a pencil.
I m installing a motorised projector screen in this video this is a 90 inch screen.
If it lights red you ve found the stud.
You should drag the stud detector over the wall upon which you will mount the projector screen.
Attach the appropriate mount to the projector.
Use an extra strong magnet.
One side attaches to the wall the other permanently affixed to the projector screen frame.
You ve found the screw and the stud if.
When it sounds it means that it has identified part of the stud wall.
After that you should measure the projector screen width with a measuring tape.
Attach the cleat to the projector screen frame measure down off of the top of the frame about 12 16 and make a mark.
At around 10kg i didn t trust hanging it from the ceiling as it just at.
Simply screw a 3 long screw in to the wall at your desired height and preferably in to a stud in the wall.
This will help you locate the screws that attach the drywall to the studs.
Carry the line from end to end using a speed square.
Move the machine over your ceiling.