Hello, my name is Bobby Barrow. National Intelligent Traffic Systems manufactures a Dept. of State K-12 certified retractable barrier system. The K-12 certification refers to being able to stop a 15,000 lbs vehicle traveling @ 50 mph. The N.I.T.S. barrier is designed to stop a 30,000 lbs vehicle @ 50 mph. It has intergrated hydraulics which means no separate pump station and buried lines and battery back-up. It has engineered, prefabricated steel-reinforced foundation and LED illumination for added visibility. It features low power requirements -control box on 110VAC, underground pylons on 24VDC. Best of all-low cost,easy installation. www.nationalits.com
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