Ceiling notification device installation is given in this Autocad drawing file. This is electrical drawing. 100x100x100mm box attached to false ceiling, notification device, flexible metallic conduit pipe ? 20 mm, emt conduit pipe ?20 mm, false ceiling, pipe support attached to ceiling and other details are given. For more details download the Autocad file. Thank you for downloading the Autocad file and other CAD program files from our website.