The Rapidox Series of gas analyzers from CEA Instruments Inc. feature an extremely wide measurement range for oxygen and have been redesigned to allow optional sensors for specialized gases such as SF6, CO2, CO and N2O as high as 0 to 100 per cent volume. These continuous, very fast responding, easy-to-use analyzers can be used for many applications and offer new fittings and thermocouples for temperature measurement, the company said. Each unit comes with software for data logging and offer comprehensive facilities normally found on much more expensive models, the company added. The Rapidox 2100 and 3100 oxygen analyzers use a Zirconia Oxygen sensor. They have programmable outputs, display and can be user-calibrated with any two oxygen points for accurate readings from under 1 ppm all the way up to 100 per cent volume to be obtained. Rapidox 3100 can be ordered as a dual gas analyzer for oxygen and either carbon monoxide, carbon dioxide or nitrous oxide.