Method of ingress or egress intrusion detection by ultrasound surveillance throughout volumetric multi-area room around a protected object, where the surveyed room is arranged in juxtaposed volumetric closed or open areas that represent central, short-range and long-range echelons of defense-in-depth intrusion protection infrastructure. An architectural construct may be comprised of, for example, graphene, graphite, or boron nitride. The device may apply the particular color scheme to a user interface of the device. The first arm has a first inner end and an opposed first outer end, and the second arm has a second inner end an opposed second outer end. The device includes a package having at least one bottom, lateral walls and a top wall; and a microwave-reflective layer on an interior surface, wherein the top wall is permeable to microwaves and includes at least one cut-out to receive and hold the sushi or similar foodstuff. Also provided are an apparatus for inserting the watermarks, a method for removing the visible watermark, essentially by performing the method \u201cin a mirror\u201d, and an apparatus for removing the visible watermark.