... 4PID+S.S.R system Temperature and humidity test chamberUsageTemperature and humidity test chamber test the fiber, LCD crystal, inductor, PCB, batteries, computers ... capabiltyOther ComponentsVacuum glass inspectin window,cable port( 60mm),control status indicator lights,chamberlamp,experment separation shelves (freely adjustable 2pcs)Safety DevicesOcerheating ...