Gastec Detector Tubes indicate concentrations directly by way of calibrated scale printed on the tubes.
Measurements of over 600 different applications.

Gastec endeavors to achieve highest quality detector tubes for analyzing airborne gases/vapors, as well as pollutants in soil and water through our advanced state-of-the-art research and development. Through their efforts, Gastec have acquired a solid reputation among their customers in virtually all sectors of industry, commerce and society. Tubes are available for more than 600 different applications.


  • On-site measurements can be performed easily by anybody, anytime and anywhere, in a short time
  • Easy-to-check direct reading possible due to the calibrated scale directly printed on the tube
  • An extensive measuring range can be obtained by adjusting the sampling volume
  • In order to assure high precision, each production lot is tested and calibrated independently. Each detector tube has its own quality control number printed on the tube
  • High quality glass tube
  • Long shelf-life with excellent long-term stability


  • The Gastec gas sampling system is perfect for applications in confined space entry, hazmat and spill control, flue and exhaust emissions sampling, chemical and petrochemical plants, pulp and paper, indoor air quality, healthcare and many other industries.


Gastec Detector tube list 25th edition