Patient monitors are medical systems that keep track and provide information about the bodily functions of a patient. These can also give details on the delivery of substances such as gases, drugs, and fluids. Patient monitors use sensors to gather data such as temperature, heart rate, blood oxygen saturation levels, blood pressure, ecg and more. An electronic module then processes the signal and converts it into a format that can be shown either on its screen or on an external display. For enhanced efficiency, some patient monitors can integrate into a local area network and management information system. Patient monitors are vital monitoring equipment that help physicians provide the best treatment based on accurate clinical data.