... humidity control system 1 Manufacturer, low price 2 Special design, easy operation, best service 3 high accuracy Room humidity control systemFeature ... air supply mode, horizontal diffusion vertical exchange circulating system. 3 Microcomputer controls temperature and humidity conditions. 4 ... Rain/Spray Test Chamber,Burn-in test equipment, Dust Tester,Steam Aging Tester,Vibration Tester,Tensile Tester, ...