The advantages and disadvantages of the humidifying function of constant temperature and humidity test chamber are generally four ways: spray humidification, steam humidification, shallow water dish type humidification, supercooling steam humidification to achieve relative humidity.

According to the in-depth investigation report on China's environmental test and reliability test equipment industry (2020 Edition) released by the information consulting company, environmental and reliability test originated from military electronics and aerospace systems.

On October 8, 2021, the signing and launching ceremony of IPO counseling and listing of Guangdong Zhongzhi Testing Instruments Co., Ltd. (hereinafter referred to as Zhongzhi) was grandly held.