"Caution - Alarm Will Sound If Door Opens" Label By SmartSign | 5" x 7" 3M Reflective Laminated Vinyl Lyle Signs supplies your decal with pressure-sensitive adhesive for easy application This Lyle Safety decal is designed to last for outdoor applications and longer for indoor applications Lyle Safety decals meet OSHA 1910.145 requirements This Lyle Safety decal uses reflective sheeting for night-time visibility