Dräger Tubes® are used in connection with the Dräger Tube Pump for the detection of gases, vapours and aerosols, normally in air and they are one of the classical measurement techniques of gas analysis. This Dräger Tube used to detect Nitrous Fumes and offers the following standard measurement ranges: 2000 - 4000 ppm and 50 - 1000 ppm. (10 Measurements)