What are portable monitors, deck guns, and ladder pipes classified as?

Portable monitors, deck guns, and ladder pipes are classified as master stream devices because they are designed to deliver large volumes of water at high pressure to effectively suppress fires, particularly in situations that require substantial water flow. These devices are typically mounted on fire apparatus or structures and are used to create a powerful stream for tactics that demand significant water application to combat large fires or protect exposures.

Master stream devices stand out due to their ability to direct water over a wide area and at varying angles, which makes them essential in firefighting strategies for dealing with massive fire incidents. Unlike portable water supplies or manual firefighting tools, which may be limited in capacity and operational scope, master stream devices are engineered specifically for high-capacity water delivery, enhancing firefighting effectiveness in large-scale emergencies.