What does the "control module" in an SCBA do?

The control module in a Self-Contained Breathing Apparatus (SCBA) plays a crucial role in ensuring the safety and efficiency of the device during use. Its primary function is to monitor air pressure and supply, which is vital for the firefighter's safety in hazardous environments. By providing real-time information about the remaining air supply, the control module helps the firefighter determine how much longer they can operate safely before needing to exit the hazardous area for refilling or replacement of the SCBA.

This monitoring feature is essential because it allows for better decision-making during operations, contributing to overall safety. Understanding the status of the air supply can directly impact the efficiency of the mission and the safety of the firefighters involved.

In contrast, storing additional air supply, regulating temperature, or providing extra protection from chemicals are functions typically associated with other components or systems, rather than the control module itself. Therefore, the correct choice highlights the critical role of monitoring capabilities in supporting safe and effective firefighting operations.