Constant temperature and humidity humidifier Features: 1.Machine equiped with closure cooling compressor, expansion valve, device of drying and filtering to make sure quanlity. 2.The solenoid valve, and plate heat exchanger all import from foreign countries with top brand 3.Automatic Control System Adopt JAPAN OMRON product 4.The machine group matched with multiple Operation Instruction and Malfunction Display 5.A single machine or multiple machine work can realize Central Control, according to the requirement of user to set communication interface, far distance concentrate display and control.