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Formerly known as Cryoguard™ Corporation (a division of Controlled Chemicals Inc. founded in 1984 in Ann Arbor, Michigan), Cryoguard LLC manufactures thermal exposure indicators, called Cryoguard Thermal Exposure Indicators, for ensuring the quality of heat sensitive material. The indicators were developed by the corporation’s founder in response to a request from U.S. Navy scientists who needed a temperature sensor for assuring the quality of blood products being shipped to the battlefield.

Over the years, the indicators have proved useful for a broad range of medical, scientific, and commercial applications. The company is a leader in quality control for cryogenic materials.


Cryoguard LLC is a member of the Cryogenic Society of America, Inc.



777 Schwab Rd., Suite W 

Hatfield, PA 19440 USA 

Phone: +1-215-712-9000 

E-mail: customer_service@cryoguard.com