colorimetric gas detector tubes
Colorimetric gas detection tubes are one-off gas measurement units. They can quickly (within a few seconds) and accurately measure concentrations of a gas. This measurement system is composed by a manual air sampling pump and reactive tubes specific to the targeted gas. This combination is inseparable.
This solution is particularly well suited for measuring the presence of toxic or asphyxiating gas. Colorimetric tubes enable detection of numerous common, rare or exotic gases (almost 500 gases and vapors). For some gases there are also different measuring ranges to meet the needs of everyone.
See our gas detection tubes FAQ page.
dosimetric detector tubes
Also known as dosi-tubes, dosimeter tubes measure a quantity of gas on a defined period (8 hours usually) to monitor time weighted average measures (TWA) of present gases and substances. Dosimeter tubes are widely used to monitor concentrations of formaldehyde, benzene and carbon dioxide in buildings open to the public.
Time-weighted detector tubes are small and lightweight and feature a clip to wear it close to the breathing tracts in order to get accurate measures of inhaled concentrations. Thus they are very discrete and inform users of the global quantity of inhaled gas during the day.
automatic air sampling pumps
The automatic air sampling pump GSP series was especially designed to get a continuous monitoring of exposure limit values and time-weighted average values in ambient air. These automatic air sampling pumps can be used to monitor formaldehyde, benzene, toluene, xylene… An LCD display allows users to setup internal flow, global sampling volume and sampling time.
pyrolyzers to detect freons
The Pyrotec 840 pyrolyzer for colorimetric gas detector tubes is an additional device. It is used when gas measurement requires a pyrolytic sampling preparation to perform the detection. It can be directly adjusted to a GV-100S air-sampling pump to get a pyrolyzer system for fluorochlorocarbon (freon) gases, halogenated hydrocarbons (acetonitrile, methyl chloride, methyl sulfide…) and anesthetic gases.
airtec tubes to monitor compressed air
Video introducing gas detector tubes