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MeterMall USA

Gas Detectors / Gas Dosimeter Tubes

     Use these specially designed dosimeter tubes to identify and measure the concentration of potentially harmful gases and vapors in the workplace and other enclosed air spaces. 

     No pump required!  Simply snap off the pre-scored end and position the dositube in a specific location or clip it to a shirt collar or pocket using the handy Dositube Holder. 

     The length-of-stain color change, forming over the next several hours, can be read directly off the calibration scale printed on the side of the tube--as easy as reading a ther mometer.  Divide the reading by the hours of exposure to get a time-weighted average (TWA) gas concentration in parts-per-million (ppm).  Dosimeter tubes require no pumps, paper charts, secondary operations, or lab analyses-- save time and money!
Dosimeter Tube Features
  • High-specificity formulation insures you measure only the gas of interest.
  • Crystal clear tubes, distinct color changes, and easy-to-read calibration scale for accurate direct-reading measurements.
  • Small and light-weight--conveniently worn on workers' collar or shirt.
  • Perform STEL, TWA, or long-term sampling up to 24 hours.
  • Exceed NIOSH and OSHA minimum performance criteria for TWA measurements with detector tubes.
  • Tubes ship factory-direct to you to insure freshness and long shelf life!
Order from these popular Gastec models


  • Acetic Acid dositube, .5- 100 ppm, 10/box -- $79.95 --      Use 81D Gastec dosimeter tubes to measure the concentration of Acetic Acid in the workplace and other enclosed air spaces.       No pump required!   Just snap off the pre-scored . . .
    Buy Now

  • Acetone dositube, 5-1500 ppm, 10/box -- $79.95 -- Use 151D Gastec dosimeter tubes to measure the concentration of Acetone in the workplace and other enclosed air spaces.       No pump required!   Just snap off the pre-scored end and position the dositube . . .
    Buy Now

  • Ammonia dositube, 0.1-10 ppm, 10/box -- $79.95 -- Use 3DL Gastec dosimeter tubes to measure the concentration of Ammonia in the workplace and other enclosed air spaces.       No pump required!   Just snap off the pre-scored end and position the dositube . . .
    Buy Now

  • Ammonia dositube, 2.5-1000 ppm, 10/box -- $79.95 -- Use 3D Gastec dosimeter tubes to measure the concentration of Ammonia gas in the workplace and other enclosed air spaces.       No pump required!   Just snap off the pre-scored end and position the dositube . . .
    Buy Now

  • Butadiene dositube, 1.3 - 200 ppm, 10/box -- $79.95 -- Use 174D Gastec dosimeter tubes to measure the concentration of Butadiene gas in the workplace and other enclosed air spaces.       No pump required!   Just snap off the pre-scored end and position the . . .
    Buy Now

  • Carbon Dioxide dositube, .02 - 12%v, 10/box -- $79.95 -- Use 2D Gastec dosimeter tubes to measure the concentration of Carbon Dioxide gas in the workplace and other enclosed air spaces.       No pump required!   Just snap off the pre-scored end and position . . .
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  • Carbon Monoxide dositube, .4 - 400 ppm, 10/box -- $79.95 -- Use 1DL Gastec dosimeter tubes to measure the concentration of Carbon Monoxide gas in the workplace and other enclosed air spaces.       No pump required!   Just snap off the pre-scored end and position . . .
    Buy Now

  • Carbon Monoxide dositube, 1- 2000 ppm, 10/box -- $79.95 -- Use 1D Gastec dosimeter tubes to measure the concentration of Carbon Monoxide gas in the workplace and other enclosed air spaces.       No pump required!   Just snap off the pre-scored end and position . . .
    Buy Now

  • Chlorine dositube, 1 - 100 ppm, 10/box -- $79.95 -- Use 8D Gastec dosimeter tubes to measure the concentration of Chlorine gas in the workplace and other enclosed air spaces.       No pump required!   Just snap off the pre-scored end and position the dositube . . .
    Buy Now


  • Formaldehyde dositube, 0.1 - 20 ppm, 10/box -- $79.95 --      Use 91D Gastec dosimeter tubes to measure the concentration of Formaldehyde gas in the workplace and other enclosed air spaces.       No pump required!   Just snap off the . . .
    Buy Now

  • Hydrogen Chloride dositube, 1 - 100 ppm, 10/box -- $79.95 -- Use 14D Gastec dosimeter tubes to measure the concentration of Hydrogen Chloride gas in the workplace and other enclosed air spaces.       No pump required!   Just snap off the pre-scored end and . . .
    Buy Now

  • Hydrogen Cyanide dositube, 1 - 200 ppm, 10/box -- $79.95 -- Use 12D Gastec dosimeter tubes to measure the concentration of Hydrogen Cyanide gas in the workplace and other enclosed air spaces.       No pump required!   Just snap off the pre-scored end and position . . .
    Buy Now

  • Hydrogen Fluoride dositube, 1 - 100 ppm, 10/box -- $79.95 -- Use 17D Gastec dosimeter tubes to measure the concentration of Hydrogen Fluoride gas in the workplace and other enclosed air spaces.       No pump required!   Just snap off the pre-scored end and position . . .
    Buy Now

  • Hydrogen Peroxide dositube, .5 - 40 ppm, 10/box -- $79.95 -- Use 32D Gastec dosimeter tubes to measure the concentration of Hydrogen Peroxide gas in the workplace and other enclosed air spaces.       No pump required!   Just snap off the pre-scored end and . . .
    Buy Now

  • Hydrogen Sulfide dositube, .2 - 200 ppm, 10/box -- $79.95 -- Use 4D Gastec dosimeter tubes to measure the concentration of Hydrogen Sulfide gas in the workplace and other enclosed air spaces.       No pump required!   Just snap off the pre-scored end and position . . .
    Buy Now

  • Methyl Ethyl Ketone dositube, .2 - 600 ppm, 10/box -- $79.95 -- Use 152D Gastec dosimeter tubes to measure the concentration of Methyl Ethyl Ketone gas in the workplace and other enclosed air spaces.       No pump required!   Just snap off the pre-scored end and . . .
    Buy Now

  • Nitrogen Dioxide dositube, .01 - 3.0 ppm, 10/box -- $79.95 -- Use 9DL Gastec dosimeter tubes to measure the concentration of Nitrogen Dioxide gas in the workplace and other enclosed air spaces.       No pump required!   Just snap off the pre-scored end and position . . .
    Buy Now

  • Nitrogen Dioxide dositube, .1 - 30 ppm, 10/box -- $79.95 -- Use 9D Gastec dosimeter tubes to measure the concentration of Nitrogen Dioxide gas in the workplace and other enclosed air spaces.       No pump required!   Just snap off the pre-scored end and position . . .
    Buy Now

  • Perchloroethylene dositube, 3-150 ppm, 10/box -- $79.95 -- Use 133D Gastec dosimeter tubes to measure the concentration of Perchloroethylene gas in the workplace and other enclosed air spaces.       No pump required!   Just snap off the pre-scored end and . . .
    Buy Now

  • Sulfur Dioxide dositube, .2 - 100 ppm, 10/box -- $79.95 -- Use 5D Gastec dosimeter tubes to measure the concentration of Sulfur Dioxide gas in the workplace and other enclosed air spaces.       No pump required!   Just snap off the pre-scored end and position . . .
    Buy Now

  • Sulfur Dioxide dositube, 10 - 600 ppm, 10/box -- $79.95 -- Use 5DH Gastec dosimeter tubes to measure the concentration of Sulfur Dioxide gas in the workplace and other enclosed air spaces.       No pump required!   Just snap off the pre-scored end and position . . .
    Buy Now

  • Tetrachloroethylene dositube, 3-150 ppm, 10/box -- $79.95 -- Use 133D Gastec dosimeter tubes to measure the concentration of Tetrachloroethylene gas in the workplace and other enclosed air spaces.       No pump required!   Just snap off the pre-scored . . .
    Buy Now

  • Toluene dositube, 2 - 500 ppm, 10/box -- $79.95 -- Use 122DL Gastec dosimeter tubes to measure the concentration of Toluene gas in the workplace and other enclosed air spaces.       No pump required!   Just snap off the pre-scored end and position . . .
    Buy Now

  • Tricholoroethylene dositube, 3-300 ppm, 10/box -- $79.95 -- Use 132D Gastec dosimeter tubes to measure the concentration of Trichloroethylene gas in the workplace and other enclosed air spaces.       No pump required!   Just snap off the pre-scored end and position . . .
    Buy Now


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instruments that measure and datalog temperature, humidity, airflow, pressure, gases, light, RPM, pH, weight, water quality, weather
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