Used for EPA compliance level emissions monitoring and testing, E8500 PLUS features electrochemical sensors for O2, CO, NO, NO2, SO2, and H2S as well as NDIR sensors for CO2, CxHy, and high CO. PID VOC sensor option is available, and internal memory holds up to 2,000 tests. Along with wireless remote printer, this low NOx- and true NOx-capable analyzer comes with low NOx and SO2 sample conditioning system, software with automatic datalogging, and internal thermoelectric chiller.