The T6713 CO2 sensor is the latest model in compact non-dispersive infrared (NDIR) CO2 sensor on the market. The gold-plate optical path allows for CO2 concentrations as great as 5000ppm to be measured. The design of the sensor makes it ease to use alongside arduino requiring only minimal wiring. The sensor is a high degree of accuracy (+/- 30ppm), does not require interval calibration and can operate at 5ppm/degree.