"Rapidox 3100-ZB bench mounted dual gas O2 / CO analyser incorporating programmable alarm and analogue outputs with datalogging software. Includes an internal sample pump and pressure correction. Oxygen analysis range: 10-20ppm to 30% using zirconia sensorCO gas analysis range: 0-3%, 0-10%, 0-30% or 0-100% using IR sensor (range selected at the time of order)."