Fixed Gas Detection Products
Colorimetric Gas Detector Tubes
Colorimetric Gas Detector Tubes
The Sensidyne Colorimetric Gas Detector Tubes provide a fast, low-cost method for measuring gases and vapours in the workplace or field. Each precision tube contains a reagent that changes colour when exposed to a specific target gas, providing a direct, visual reading of concentration levels.With over 350 available gas and vapour types, Sensidyne tubes are machine-manufactured to tight tolerances for consistent accuracy. They can be used for trace-level detection, screening for unknown gases, or compliance testing when connected to the Sensidyne AP-20S Pump.
- Free technical support included
- Complimentary product training available
- Free on-site or virtual demonstration offered
Technical Details
Specifications
- Detection method: Colorimetric chemical reaction (length-of-stain)
- Measured gases: 350+ gases and vapours
- Detection range: ppm, mg/L, or % (gas-dependent)
- Tube type: Direct-reading, scale-marked, sealed glass tubes
- Media: Reagent on silica gel, alumina, or other absorbent media
- Calibration: Factory calibrated – ISO 9001 certified production
- Operation: One or more pump strokes per tube (per instructions)
- Shelf life: Typically 2 years (sealed storage)
- Certifications: ISO 9001 (factory and US distribution)
Key Features
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High precision: Consistent, repeatable readings between batches
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Wide range: Over 350 gases and vapours available
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Direct reading: Colour-change length shows gas concentration instantly
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Safe and simple: Shatter-resistant tubes with no calibration required
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Cost-effective: Low cost per sample for routine monitoring
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Trace-level detection: Measure down to parts-per-million concentrations
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HazMat support: Available as part of the Sensidyne HazMat-III Kit
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Portable and field ready: Works anywhere with the AP-20S Pump
Industry Applications
Sensidyne Detector Tubes are used across manufacturing, refineries, laboratories, wastewater treatment, and emergency response to detect hazardous and toxic gases, vapours, and chemicals. They are trusted for industrial hygiene, air quality testing, and environmental sampling in confined or open environments.
