The ESS, Inc. Space Simulation
Thermal Chamber or SSTC has been developed to allow simultaneous thermal vacuum
testing of electronic components that may be heated and cooled by direct
conduction. The SSTC is a fast, portable and cost effective solution for testing
components that must be thermally screened and subjected to a high altitude or
high vacuum environment.
New Altitude Control System
Much lower initial and operating cost
Flexible
Here is some important questions to answer when considering an ESS Space Simulation Thermal Chamber - SSTC Questionnaire (.pdf)