A carbon dioxide (CO 2 ) sensing system comprising: a CO 2 sensor configured to measure a CO 2 concentration in exhaled breath of a subject; a processor configured to derive one or more breath related parameters based on the CO 2 concentration; and a communication unit; wherein the CO 2 sensing system is configured to receive a connector of a tubing system comprising a communication component , wherein the communication unit is configured to receive an indication from the communication component and transfer data to the processor based on the indication, characterized in that : the processor is configured to adjust or suggest an adjustment of an operation mode of the CO 2 sensing system based on the data, wherein adjusting or suggesting an adjustment of the operation mode of the CO 2 sensing system comprises enhancing or suggesting an enhancement of the operation of a pump of the CO 2 sensing system in response to the data indicating that intubation of the subject via an intubation tube of the tubing system has occurred and until a first CO 2 signal is obtained by the CO 2 sensor, wherein the pump is configured to adjust a flow of the exhaled breath of the subject toward the CO 2 sensor, and wherein the enhancement of operation of the pump comprises increasing the pump's output above the output obtained at a normal or optimal working point, the normal or optimal working point comprising operating the pump but at less than full capacity, thereby reducing a time required for verification of correct intubation. a CO 2 sensor configured to measure a CO 2 concentration in exhaled breath of a subject; a processor configured to derive one or more breath related parameters based on the CO 2 concentration; and a communication unit; wherein the CO 2 sensing system is configured to receive a connector of a tubing system comprising a communication component , wherein the communication unit is configured to receive an indication from the communication component and transfer data to the processor based on the indication, characterized in that : the processor is configured to adjust or suggest an adjustment of an operation mode of the CO 2 sensing system based on the data, wherein adjusting or suggesting an adjustment of the operation mode of the CO 2 sensing system comprises enhancing or suggesting an enhancement of the operation of a pump of the CO 2 sensing system in response to the data indicating that intubation of the subject via an intubation tube of the tubing system has occurred and until a first CO 2 signal is obtained by the CO 2 sensor, wherein the pump is configured to adjust a flow of the exhaled breath of the subject toward the CO 2 sensor, and wherein the enhancement of operation of the pump comprises increasing the pump's output above the output obtained at a normal or optimal working point, the normal or optimal working point comprising operating the pump but at less than full capacity, thereby reducing a time required for verification of correct intubation. the processor is configured to adjust or suggest an adjustment of an operation mode of the CO 2 sensing system based on the data, wherein adjusting or suggesting an adjustment of the operation mode of the CO 2 sensing system comprises enhancing or suggesting an enhancement of the operation of a pump of the CO 2 sensing system in response to the data indicating that intubation of the subject via an intubation tube of the tubing system has occurred and until a first CO 2 signal is obtained by the CO 2 sensor, wherein the pump is configured to adjust a flow of the exhaled breath of the subject toward the CO 2 sensor, and wherein the enhancement of operation of the pump comprises increasing the pump's output above the output obtained at a normal or optimal working point, the normal or optimal working point comprising operating the pump but at less than full capacity, thereby reducing a time required for verification of correct intubation. <EOS>