Manual Source Selection: Unlike fully automatic controllers that automatically switch between gas sources, semi-automatic controllers require a healthcare provider to manually select the gas source (e.g., a specific gas cylinder) for a particular area or equipment. This manual selection can provide greater control and flexibility in certain situations.

Flow Control: Semi-automatic controllers offer manual control over the flow rate of gases being delivered to different outlets, allowing healthcare providers to adjust the flow as needed for specific patient care requirements.

Pressure and Flow Monitoring: These controllers monitor the pressure and flow rates of gases for safety and quality assurance. Alarms and indicators may alert healthcare providers to irregularities.

Gas Source Pressure Monitoring: The controller typically displays the pressure of each gas source, enabling healthcare providers to assess the availability of gases in real time.

Outlet Connections: The controller connects to a network of outlet connections, each of which supplies medical gases to specific points of care.

Color Coding: Like fully automatic controllers, semi-automatic controllers often use color-coding to differentiate between different gases and ensure that the correct gas source is selected manually.

Integration with Alarm Systems: Many semi-automatic controllers integrate with alarm systems to provide alerts in case of pressure drops or other issues with gas sources.

Remote Monitoring: Some models may offer remote monitoring capabilities, allowing authorized personnel to access real-time data and make adjustments from a central location.

Compliance with Standards: These controllers are designed and manufactured to meet regulatory standards and safety requirements specific to medical gas supply systems.

Emergency Shutdown: In the event of a critical failure or hazardous situation, the controller may have an emergency shutdown feature to isolate the gas supply and ensure patient safety.