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美國DeltaTRAK 
自1989年以來，美國DeltaTRAK有限公司，（簡稱DTI公司），致力于生產高質量的便攜式測試調校儀器，諸如：用于監測/記錄溫度和濕度數據的圖表記錄儀；電子數據記錄儀；紅外線溫度計；以及普遍使用在食品行業，HACCP行業，以及生命科學行業中的各式熱門的檢測儲存和運輸的儀器工具。DeltaTRAK公司研發了技術先進的數據庫分析軟件，作為“冷鏈數控系統”， 即新鮮食品，或其他易腐爛產品的低溫運輸管理系統的一部分，連同無線監測/警報系統，在全球范圍內廣泛使用。

DeltaTRAK公司的革新技術—ColdTrak Program/“冷鏈數控系統”，包括冷鏈管理解決方案，確認質量保證，保護食品，生物制藥，化學品，以及其它易腐爛的，或對溫度敏感的商品，在加工、運輸、處理和儲藏各個環節中的安全。后續支持和物超所值的服務是“冷鏈數控系統”不可分割的部分。加上提供的第三方授權標準的服務，以遵循，追溯，確認及驗證質量；當那些對溫度敏感的商品慘遭破壞時，還可作為有力證據支持保險索賠。

美國DeltaTRAK公司，總部設在美國加州的普萊桑頓城市, R & D中心在圣地亞哥城市，生產和倉儲分銷中心在莫德斯托城市, 并于2003年5月在中國深圳建立了電子生產型企業金雋電子（深圳）有限公司。
Since 1989, DeltaTRAK, Inc. has been developing and manufacturing high quality portable test instruments such as chart recorders and data loggers that monitor / record temperature and humidity. We've subsequently developed affordable and dependable digital probe and infrared thermometers to provide better end-to-end cold chain management solutions. In addition, we have added state-of-the-art data download / management / analysis software to our data logger product line. Our products and services are depended on by businesses big and small around world.

Only DeltaTRAK offers the ColdTrak? Program, which includes cold chain management solutions for validation, quality assurance and safety of food, pharmaceuticals, chemicals and other perishable or temperature-sensitive commodities during processing, shipment, handling, and storage. Follow-up support and value-added services are an integral part of the ColdTrak program. A report of archived data is available upon request, including Web-hosted access. Third party certified calibration services are offered for compliance, traceability, validation, quality assurance, and for use as evidence to support insurance claims when temperature sensitive commodities have been damaged.

DeltaTRAK, headquartered in Pleasanton, California, also has offices in San Diego, California a main manufacturing and distribution facility in Modesto, California, as well as a joint venture electronic assembly operation in Shenzhen, China.