Gastec Gas Tubes

Nitro Compounds Gas Detection Tube – 0.5–30 PPM Measuring Range

This Nitro Compounds gas detection tube provides fast, reliable air sampling across a 0.5 to 30 ppm measuring range. Designed for short-duration monitoring, the tube delivers clear, easy-to-read results with a two-minute sampling time, making it ideal...

Nitrogen Dioxide Detection Tube – 0.01 to 3 PPM

This Nitrogen Dioxide detection tube is engineered for ultra-low level, long-duration NO₂ monitoring across a precise 0.01 to 3 ppm range. Designed for extended sampling, the tube delivers clear colorimetric results over 1 to 24 hours, making it ideal...

Nitrogen Dioxide Detection Tube – 0.1 to 30 PPM

This Nitrogen Dioxide detection tube is designed for long-duration, mid-range NO₂ monitoring across a controlled 0.1 to 30 ppm range. Built for time-weighted exposure sampling, the tube delivers clear colorimetric results over 1 to 10 hours, making it...

Nitrogen Dioxide Detection Tube – 0.5 to 125 PPM

This Nitrogen Dioxide detection tube is designed for rapid, mid-to-high range NO₂ monitoring across a controlled 0.5 to 125 ppm range. Built for fast field sampling, the tube delivers clear colorimetric results in approximately 30 seconds to 1 minute...

Nitrogen Oxides Detection Tube – 0.02 to 7 PPM

This Nitrogen Oxides detection tube is engineered for ultra-low level NOₓ monitoring across a precise 0.02 to 7 ppm range. Built for sensitive field sampling, the tube delivers clear colorimetric results in approximately 2 to 5 minutes when used with a...

Nitrogen Oxides Detection Tube – 0.04 to 16.5 PPM

This Nitrogen Oxides detection tube is engineered for ultra-low level NOₓ monitoring across a precise 0.04 to 16.5 ppm range. Designed for sensitive field sampling, the tube delivers clear colorimetric results in approximately 2 to 16 minutes when used...

Nitrogen Oxides Detection Tube – 2.5 to 200 PPM

This Nitrogen Oxides detection tube is designed for fast, accurate mid-range NOₓ monitoring across a reliable 2.5 to 200 ppm range. Built for efficient field sampling, the tube provides clear colorimetric results in approximately 45 seconds to 1.5...

Nitrogen Oxides Detection Tube – 5 to 625 PPM

This Nitrogen Oxides detection tube is designed for fast, reliable workplace air monitoring across a broad 5 to 625 ppm range. Built for efficient field use, the tube delivers clear colorimetric results in approximately 30 seconds to 1.5 minutes when...

Nitrogen Oxides Detection Tube – 50 to 2500 PPM

This Nitrogen Oxides detection tube is designed for fast, high-concentration NOₓ monitoring across a broad 50 to 2500 ppm range. Built for efficient field use, the tube delivers clear colorimetric results in approximately 1.5 minutes when used with a...

o-Cresol Detection Tube – 0.4 to 62.5 PPM

This o-Cresol detection tube is designed for reliable workplace air monitoring across a controlled 0.4 to 62.5 ppm range. Built for flexible field use, the tube delivers clear colorimetric results in approximately 1.5 to 6 minutes when used with a...

o-Dichlorobenzene Detection Tube – 2.5 to 300 PPM

This o-Dichlorobenzene detection tube is designed for accurate workplace air monitoring across a broad 2.5 to 300 ppm range. Built for efficient field use, the tube delivers clear colorimetric results in approximately 3 minutes when used with a...

Oil Mist Detection Tube – 0.2 to 5 mg/m³

This Oil Mist detection tube is designed for accurate low-level aerosol monitoring across a controlled 0.2 to 5 mg/m³ range. Built for extended sampling, the tube delivers clear colorimetric results in approximately 20 minutes when used with a...