The product page of 功能扩展软件 "WV-Q124" from the Panasonic Security System. You can download features, manuals and firmware, specification sheet and more for WV-Q124 here.
WV-Q124 Key Feature - Panasonic安防监控系统 - 产品
This ceiling mount bracket is exclusively designed to mount the camera on a ceiling.
This bracket can be used for an area with weak pull-out strength such as plasterboard in a double ceiling.
This bracket is an embedded type to reduce the exposed portion of the camera body.