SmartSign 3M Engineer Grade Reflective Sign, Legend "24 Hours a Day Video Camera Surveillance", Bilingual Sign with Graphic, 18" high x 12" wide, Black/Red on White Legend "24 HOURS A DAY VIDEO CAMERA SURVEILLANCE NO TRESPASSING" Lyle signs supplies your sign with radius corners for safety; holes punched for post mounting Lyle Standard signs have a 7 year durability Lyle Signs produces signs that exceed industry standards and specifications The temperature range is -40 to 175 degrees F