The high and low temperature test mainly simulates the high and low temperature changes in the natural environment to test the heat, cold and dry resistance of the product. It generally includes high temperature test, low temperature test, temperature and humidity change and other tests.

The high and low temperature test equipment is mainly used to conduct environmental simulation tests on the physical and other relevant characteristics of products under low temperature, high temperature and various conditions according to the requirements of national standards or users' own requirements. After the test, it can preliminarily judge whether the product performance can still meet the predetermined requirements, which is mainly used for product design, improvement, identification and delivery inspection.