Short Description: hot and cold temperature shock environmental aging tester with separate hot and cold zones, the automated thermal stress system has a patented, retractable product transfer carrier basket that makes full use of the available workspace in both temperature zones for increased product loading and throughput. the product transfer carrier basket reduces the overall height requirements of the chamber and is made as light as possible to minimize thermal loading restraints. thermotron atss chambers can be used as part of most thermal cycling reliability and quality control programs.