The size and the complexity of environmental chambers can vary quite a bit. Some of the machines are small and they will sit on a bench top. Others are large walk-in structures. Most of the chambers will have viewing ports so that the technician can observe what’s happening to the sample. Some of the chambers have interior lighting. Since this can increase the temperature of the chamber, they compensate for the added heat. Many different types of control schemes are available for the chambers. Some of them are very simple analog controls and indicators. Others have LCD displays and digital readouts.
The environmental chamber, which can vary in size, allows the users to alter the conditions within the device. This lets them replicate a number of different environmental possibilities. This includes extreme heat or cold, fast and extreme variations in the temperature, changes in humidity, rain, weathering, UV degradation, vacuum, and more. The items to be tested are placed in the chamber and are then subjected to one or more different environmental conditions.