What type of gauge is designed to read both positive and negative pressure?

The master intake gauge is specifically designed to read both positive and negative pressure, which is essential in various hydraulic and firefighting applications. Unlike standard pressure gauges that typically only measure positive pressure, a master intake gauge can provide a comprehensive view of the pressure conditions within a system, allowing operators to monitor vacuum and positive pressure situations effectively. This dual capability is crucial for ensuring that the system operates within safe parameters and for troubleshooting any potential issues, thereby enhancing safety and effectiveness during aerial operations or when managing water supply for firefighting.

Other types of gauges mentioned, such as pressure gauges and flow gauges, usually have more limited functions, focusing primarily on positive pressure readings or specific flow measurements, and digital gauges may not necessarily be designed for both pressure types.