"Warning - Property Protected by Electronic Alarm System" Sign by SmartSign | 7" x 10" Plastic Legend "WARNING PROPERTY PROTECTED BY ELECTRONIC ALARM SYSTEM" Lyle Signs supplies your sign with radius corners for safety and holes punched one in each corner for easy installation This Lyle Safety sign is designed to last up to 4 years for outdoor applications and longer for indoor applications Lyle Safety signs meet OSHA 1910.145 requirements This Lyle Safety sign is impact resistant