A compact and portable device that provides immediate results for monitoring carbon dioxide levels (EtCO2) and respiratory rate in patients, from infants to adults. Delivers real-time data and wave display within 15 seconds. Convenient for use in a wide range of medical environments. Intensive care, operating rooms, emergency medicine, and long-term acute care. Easily connects to the patient's breathing circuit, designed to withstand harsh conditions and requires minimal maintenance, with no need for regular calibration. Simple interface with easy activation, and an alarm system for detecting conditions such as adapter blockage, absence of breathing, or low battery. Operates up to 10 continuous hours using two AAA batteries.