The Constant Temperature and Humidity Test Chamber, also known as a Programmable Constant Temperature and Humidity Test Chamber or Constant Temperature and Humidity Box, belongs to the same series as the High and Low Temperature Alternating Humidity Test Chamber. It can perform high temperature, low temperature, and alternating humidity tests on electrical, electronic, household appliances, automotive, motorcycle, chemical, and other product components and materials under constant humidity conditions. It checks their various performance indicators and adaptability.

The temperature and humidity controlled test chamber consists of two parts: temperature regulation (heating, cooling) and humidification. A rotating fan installed at the top of the chamber expels air to achieve gas circulation and balance the temperature and humidity within the chamber. The data collected by the internal temperature and humidity sensors is transmitted to the temperature and humidity controller (a micro information processor) for editing and processing, which then issues temperature and humidity adjustment commands. These commands are executed collectively by the air heating unit, condenser tubes, and the heating evaporation unit within the water tank.

The恒温恒湿试验箱 accurately simulates complex natural environments such as low temperature, high temperature, high temperature and high humidity, low temperature and low humidity. It is commonly used in laboratories for plant cultivation and breeding experiments; bacterial and microbial cultivation, fermentation; various constant temperature tests, environmental tests; water analysis, BOD measurement; tests on the denaturation of microbial culture substances and media, sera, and other items storage.