Constant temperature and humidity control device

The utility model discloses a constant temperature and humidity control device, the system takes place including the dry air, the decompression valve, the thermostated container, compared with the prior art, humidity transducer, humidity control module, be equipped with an electric valve and a gas flowmeter between decompression valve and the thermostated container in proper order, be equipped with the 2nd electric valve and the 2nd gas flowmeter between air pump and the thermostated container in proper order, an electric valve, a gas flowmeter, the 2nd electric valve, the 2nd gas flowmeter all links to each other with humidity control module, humidity transducer links to each other with the thermostated container, humidity transducer transmits hygrometry numerical value for humidity control module. The utility model provides high under the low temperature hygrometry's control accuracy and control range provide the experiment condition for the examination of humiture under the low temperature. 本实用新型公开了种恒温恒湿控制