Reliable Our company, Central District Alarm Inc., provides an array of security solutions, ranging from door and motion sensors to closed-circuit televisions and complex systems. Choose the right security system for you. CDA's security consultants will help you understand the differences among the Basic, Standard, and Enhanced levels, as well as the benefits of each. CDA will tailor your system to your needs once you have selected the security level that best meets your requirements. We offer 24/7 Service. U.L. listed Central Station for Commercial and Residential Systems in St. Louis. The largest privately-owned security company in St. Louis, with local monitoring. Three generations of the same family are now in their 70th anniversary year. Our knowledgeable and professional representatives will help you create a security system that is perfect for your specific needs.
