Packaging Walk-in constant temperature and humidity testing machine is suitable for the whole machine or large-scale parts to do the low temperature, high temperature, the change of high and low temperature, constant humidity and heating, high-low temperature alternating humidity and heating test. Provide large-scale parts,semi-finished product, finished product for Large-scale temperature and humidity testing environment space to industry. It is mainly composed of control panel, switchboard, moisturizing base plate blower, heating machine, humidity machine, refrigerator. And we also can design the chamber size and function according customers’ need. Block type enclosed cabinet,nice appearance, scientific design.