Instrumentation Retrofits Controller upgrades, including optional computer interfaces, chart recorders and redundant temperature safety cut-outs available for all chambers.  We can provide and install a controller package or we can install a customer provided package.   Refrigeration Retrofits Chambers using old, ozone depleting refrigerants, such as R12, R502, R13 and R503 can be retrofitted with environmentally safe refrigerants, which comply with the Clean Air Act and Montreal Protocol.   Performance Upgrades Perfromance upgrades, such as air dryer packages for super low humidity levels, boost heat for quick heat ups, LN2 or CO2 boost cooling kits for quick temperature pull downs can be retrofitted to most test chambers.