"Rapidox 5100 mobile Biogas gas analyser.Sensors included - CO2-O2-CH4-H2S- CO2 - IR sensor; 0-100%- O2 - EC sensor; 0-30%- CH4 - IR sensor; 0-100% - H2S - EC sensor; 0-2000ppmUnit includes flow sensor, pressure sensor, flashback arrestor, thermal printer, internal sampling pump, sampling kit (probe and filter)Calorific content of specified gases is calculated and displayed."