For short-term measurements more than 160 Dräger-Tubes are available to measure the so-called spot concentrations of specific gases. A wide range of different gases and vapours can be detected and measured, e.g.: Determining and measuring concentration peaks, Measuring personal exposure in the inhalation area, Detecting leaks in pipelines, gas installations etc., and Air analysis in sewers, shafts and confined spaces.Phosphine 1/a, Standard measurement range (20° C, 1013 hPa): - 20-100 ppm (measurement time approx 2 minutes)- 1-20 ppm (measurement time approx 10 minutes)