Temperature and Humidity Chamber is also called as climatic chamber, constant environmental test chamber or constant humidity chamber. It is capable of simulating the range of temperature & humidity fluctuating from the extremely low values of -70℃ & 20% R.H to the exceeding high values of 150℃ & 98% R.H, which specimens may be exposed to in the natural environment. Constant temperature & humidity testing chamber is mainly used to determine the performance of specimens to withstand extremely high temperature, low temperature, high humidity, low humidity in a constant state or an alternate state. It is applicable to materials and products which are sensitive to temperature and moisture.