Welcome to Simplex Connection, a professional installation Security Systems Serving San Diego and San Diego County. Closed-circuit television "CCTV" is one of our core business, Intercom systems, access control and entry systems. We proudly serve San Diego and all San Diego County. Your home security is very important your security is important. By professionally installing a security camera system that will bring your home and family safe, meet your needs. Business owner that invest in surveillance equipment can save money and make sure that their investment are safe against thieves and will reduces insurance cost.