Pressure tanks may be supervised by an approved company that monitors what?

Pressure tanks in sprinkler systems serve a critical function in maintaining the proper water pressure necessary for the effective operation of the sprinkler system. Supervising these pressure tanks by an approved company ensures that they are monitored continuously for their operational status, which includes pressure levels, leaks, and overall functionality.

When a company monitors the sprinkler system, they can quickly identify any issues with the pressure tanks that may arise, thereby allowing for prompt maintenance or adjustments. This monitoring is essential to ensure that the sprinkler system is always ready to activate in the event of a fire, providing the necessary suppression needed to protect lives and property.

The other options pertain to different systems and components within a building. Monitoring the building's property, fire alarm system, or HVAC system does not directly relate to the operational status of the sprinkler system and its pressure tanks. Focused oversight of the sprinkler system specifically addresses the unique requirements and risks associated with fire suppression measures.