SILAREX - TOC is a high-end infrared gas detection module, which use for Water TOC measurement, that uses the non-dispersive infrared detection technology NDIR to simultaneously detect up to 3 different ranges of carbon dioxide gase, where each range has it‘s own accuracy. The optical structure of the module is designed to be simple, with a robust mechanical structure for easy integration and digital signal processing by a microprocessor. It also integrates temperature and pressure compensation sensors to effectively compensate for detection of interfering signals to achieve high accuracy and stability detection.