"Rapidox 3100-ZD bench mounted dual gas O2 / H2O (dewpoint) 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 sensor H2O (dewpoint) range: -60°C to +20°C or -100°C to +20°C using dewpoint sensor (range selected at time of order)Internal stainless steel pipework for improved performance"