Patient monitors are medical devices used in healthcare settings to continuously observe a patient's vital signs, such as heart rate, blood pressure, and oxygen saturation. These monitors provide real-time data, allowing healthcare professionals to quickly assess a patient's condition and respond to any changes. Typically found in hospitals, especially in intensive care units, patient monitors can be connected to alarms that alert staff if a patient's vital signs fall outside of normal ranges. This technology plays a crucial role in ensuring patient safety and improving outcomes during medical treatment and recovery.