The Zoom Pinhole lens is adjustable from a 4mm to  a 20mm focal length.   This lets you zoom in from ahigh ceiling area. 

You may need to remove the  support rings if they are in the way.  You can also remove the cap when more light is needed.

Use the Forstner drill bit supplied in the camera installation kit to drill out the ceiling tile until it is wafer thin.

Cut the area in front into smaller squares approximately 1/2“ to the same depth.

Once you have drilled the hole use some thin adhesive to coat it. The coating will strengthen it and will get rid of fibers.

Without making a large hole you will never get horizontal, but you can still attain a good angle for cash registers and computer monitoring.

The battery-powered setup monitor can be removed from our systems and carried with you into the ceiling area.  

Use the set up monitor to confirm the angle; zoom in or out as needed; make any small adjustments - do this step when  the tile is in place.

There should be a SMALL hole in the tile.

Make sure the lens is centered to prevent picture distortion from the tile.   If the hole is too large, start again, take your time and whittle the tile around the hole so that the lens has very little to go through.

Use some white out to touch up the hole.