Patient monitor modules are important support tools that provide data to help physicians make accurate and sound clinical decisions. They are responsible for processing the signals from its sensors and converting it to a compatible format that can be shown on their display screen or to an external display output. They are equipped with microprocessors and can either be specialized in one application or perform multi-parameter monitoring, often referred to as an MMS module, and can be used at the bedside or in an ambulatory setting. Most are capable of recording trending data within 24 to 48 hours to aid in comprehensive analysis. They enable hospitals and healthcare facilities to deliver high class monitoring in various kinds of medical applications. One important aspect about patient monitor modules is that they are easily replaceable and can be swapped out with another when needed. When something needs repair, the monitor does not go down because the module, which is the brains of the monitor or parameter, can be changed out and shipped in for quick and easy repair.