GPS Standard S.p.a. - Perimeter protection systems integrated with remote surveillance applications. Product information and manuals. Italy. GM Advanced Security Technologies Ltd. - Electronic fence security system for hard-wired and wireless perimeter security. Advanced Perimeter Systems Limited - Designer and manufacturer of security products for outdoor perimeter protection and intrusion detection. United Kingdom. Product information, case studies and manuals. Integrated Security Corporation - Monitoring and control systems, perimeter protection, and security management. Walled Lake, Michigan. Portcullis Perimeter Security. - Security Fencing plus a wide range of access options from swing or sliding automatic gates. Australia D-Fence Security Systems Ltd. - Manufacturer of electronic fence products. Israel [English, Russian and Spanish] Trap International CC - Wire-free outdoor early security warning system. Includes product and technical information, and list of authorized dealers. South Africa. RBtec Inc - Manufacturer and installer of fencing and electronic monitoring systems, with technical specifications, illustrated portfolio, and company news. [English, Russian and Spanish] Gunnebo UK Limited - Perimeter security under the Elkosta and Wego brand names. Southwest Microwave, Inc. - Provides electronic perimeter intrusion detection and wireless CCTV transmission systems. Perimeter Intrusion Security - Design and manufactures optical fiber perimeter intrusion detection systems. ECSI International, Inc. - Designs and manufactures custom engineered high profile perimeter, physical, and information security systems.