Evaluation Module for TGS8100 Air Quality Sensor A PCB module from Figaro which allows evaluation of the on-board TGS8100 air quality sensor. Operation is simplified by using a continuous output signal generated by the module. Although the TGS8100 operating mode uses intermittent detection via a 1-second cycle, the periodic sensor output is converted into a continuous voltage signal by the module's microprocessor. The TGS8100 sensor is mounted on a replaceable daughter-board and is sensitive to most common air contaminant gases. The module requires a regulated supply of 5Vdc and produces an output of 0-3V.