National Time & Signal Corp

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For over 90 years, National Time and Signal has been designing and manufacturing life safety systems. Located in Wixom, Mich., the company's products include life safety, master clock systems and architectural clocks. National Time and Signal offers services that include field services and custom design/manufacturing. The company serves K-12 schools, universities, hospitals/health care and commercial/retail. National Time and Signal has affiliations with the Automatic Fire Alarm Association, National Fire Protection Association, National Electrical Manufacturers Association and National Systems Contractors Association.