WELTOF Trademark

Gas testing instruments; Apparatus for analysing gases; Residual gas analyzers; Apparatus for generating gas for calibration purposes; Air analysis apparatus; Liquid analyzers; Acidity analysers; Gas sensors for measuring gas concentration; Gas detectors for detecting the presence of gas; Combustible gas concentration detectors; Gas mixers for laboratory use; Gas chromatography apparatus for laboratory use; Apparatus for testing gas, liquids and solids; Technical measuring, testing and checking apparatus and instruments for measuring, testing and checking the temperature, pressure, quantity and concentration of gas and liquids; Gas flow monitors; Flue gas analyzers; Measuring apparatus for temperature and humidity levels in gases and solid substances; Computer-controlled apparatus for testing and measuring concentrations of gas and liquids, volatile and non-volatile organic compounds