A gas delivery system including a gas delivery device (100), a control module (200) and a gas delivery mechanism is disclosed. It is important when administering gas therapy to patients to verify the correct type of gas and the correct concentration are being used. It is also important to verify dosage information and administration. This system helps verify these parameters by storing information about the gas cylinder and transmitting this information to the gas delivery device. The gas delivery device integrates with a computerized system to ensure that patient information contained within the computerized system matches the gas that is to be delivered by the gas delivery device. An exemplary gas delivery device includes a valve (107) assembly with a valve and circuit including a memory, a processor and a transceiver in communication with the memory. The memory may include gas data such as gas identification, gas expiration and gas concentration. The transceiver on the circuit of the valve assembly may send wireless optical line - of - sight signals (300) to communicate the gas data to the control module. Exemplary gas delivery mechanisms include a ventilator (400) and a breathing circuit (410). Methods of administering gas are also described.
