Tucson test couplings and hoses are applied for the monitoring and control of pressure as well as the ventilation. The advantages of this system are – among other – connection at system pressure level, the easy connection to measurement control and switching devices, and the leak proof connection of the metal cap. The Couplings provide a Male BSP to Minimess Hose connection while the Gauge adopters provide a Female BSP to Minimess Hose connection