Gastec Dosi-Tubes
The passive Dosi-tube shows a colour stain to determine how much hazardous gas a worker has been in contact with over the Time Weighted Average (TWA). Dosi-tubes are clipped into a dosi-tube holder (bought separately) which attaches to an item of clothing and worn over a working day or shift.
- Simple-to-read – No chart or lab analysis required.
- Next Day Delivery – Order before 2pm for next day delivery*.
- Low-cost method – Low upfront cost, no calibration, and no lab testing cost.
Showing 17–24 of 24 results
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GAS3DL Ammonia Passive Dosi-Tube 0.1 – 10ppm
£41.50ex. VAT£49.80inc. VAT -
GAS4D Hydrogen Sulphide Passive Dosi-Tube 0.2 – 200ppm
£41.50ex. VAT£49.80inc. VAT -
GAS5D Sulphur Dioxide Passive Dosi-tube 0.2 – 100ppm
£41.50ex. VAT£49.80inc. VAT -
GAS5DH Sulphur Dioxide Passive Dosi-Tube 10 – 600ppm
£41.50ex. VAT£49.80inc. VAT -
GAS81D Acetic Acid Passive Dosi-Tubes 0.5ppm – 100ppm
£41.50ex. VAT£49.80inc. VAT -
GAS8D Chlorine Passive Dosi-Tube 0.08 – 100ppm
£41.50ex. VAT£49.80inc. VAT -
GAS9DL Nitrogen Dioxide Passive Dosi-Tube 0.01 – 3ppm
£41.50ex. VAT£49.80inc. VAT -
GAS9D Nitrogen Dioxide Passive Dosi-Tube 0.1 – 30ppm
£41.50ex. VAT£49.80inc. VAT
