An effective surveillance decal that clearly indicates that the area is under camera surveillance through both illustration and text. The sticker is self-adhesive in A5 format (210 x 148 mm) and can be stuck to windows and other smooth surfaces. Camera surveillance requires clear signage regardless of where the camera surveillance takes place. Therefore, remember to post clear signs and follow the rules. Signs also have an intimidating effect and can therefore help even those without CCTV.