ETCO2 Calibration Gas 10% CO2, 21% O2, Balance N2 Advisor® Vital Signs Monitor, Capnocheck® II Hand-Held Capnograph/Oximeter, Capnocheck® Sleep Capnograph/Oximeter, and Capnocheck® Plus

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.p65Warnings.ca.gov.