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MCJ Incorporated is primarily engaged in the business of research and development. However we also manufacture, market, service and support the products that we develop. MCJ combines science, research and development in exploring new and innovative approaches for product awareness.

Always listening to our clients, we recognize their needs and create solutions which aid them to achieve their goals. With an international network of distributors in 11 countries MCJ Incorporated offers a wide range of products and services to markets including: medical, law enforcement, homeland security, national defense, public safety, and transportation.

MCJ specializes in impairment detection instruments, security identification systems and development of related software that integrates with our core product line. The company provides a wide range of certified courses in impairment detection related to fatigue and drugs.


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The product name EyeCheck™ of MCJ, Inc. and it's pupillary impairment detection algorithms have never been sold to or associated with any foreign corporation. All research and development of EyeCheck™ has been conducted in the U.S.A.