Gastec Nitrogen Oxides (NO & NO₂) Gas Detector Tubes provide a convenient method for measuring nitrogen oxide (NO) and nitrogen dioxide (NO₂) concentrations in air using a compatible Gastec gas sampling pump.

Designed for on-site gas detection, industrial hygiene, workplace air monitoring, occupational safety, combustion monitoring, and environmental testing, Gastec detector tubes provide a simple visual method for measuring nitrogen oxide concentrations without requiring electronic gas detection equipment.

Multiple tube options are available for either separate quantification of NO and NO₂ or total quantification of nitrogen oxides (NO + NO₂) across a wide range of concentrations.

Gastec Nitrogen Oxides Detector Tube Options:

Gastec 10 Nitrogen Oxides Detector Tubes – Separate Quantification:

  • Part Number: 10
  • Target Gases: Nitrogen Oxide (NO) & Nitrogen Dioxide (NO₂)
  • Measurement Type: Separate Quantification
  • Nitrogen Oxide (NO) Measuring Range: 2.5–200 PPM
  • Nitrogen Dioxide (NO₂) Measuring Range: 2.5–200 PPM

Gastec 11L Nitrogen Oxides Detector Tubes – Total Quantification:

  • Part Number: 11L
  • Target Gases: Nitrogen Oxides (NO + NO₂)
  • Measurement Type: Total Quantification
  • Nitrogen Oxides Measuring Range: 0.04–16.5 PPM
  • Quantity: 10 tubes per box
  • Tests: 10 tests per box

Gastec 11S Nitrogen Oxides Detector Tubes – Total Quantification:

  • Part Number: 11S
  • Target Gases: Nitrogen Oxides (NO + NO₂)
  • Measurement Type: Total Quantification
  • Nitrogen Oxides Measuring Range: 5–625 PPM
  • Quantity: 10 tubes per box
  • Tests: 10 tests per box

Gastec 11HA Nitrogen Oxides Detector Tubes – Total Quantification:

  • Part Number: 11HA
  • Target Gases: Nitrogen Oxides (NO + NO₂)
  • Measurement Type: Total Quantification
  • Nitrogen Oxides Measuring Range: 50–2,500 PPM
  • Quantity: 10 tubes per box
  • Tests: 10 tests per box

Common Applications

Gastec Nitrogen Oxides Gas Detector Tubes can be used with compatible Gastec sampling equipment for workplace air monitoring, industrial hygiene surveys, occupational exposure assessment, combustion and exhaust monitoring, diesel exhaust testing, welding operations, manufacturing facilities, chemical processing, power generation facilities, boilers and combustion equipment, laboratory environments, environmental monitoring, process monitoring, and workplace safety applications where nitrogen oxides may be present.

Important

A compatible Gastec Gas Sampling Pump is required to use these detector tubes. Because different Gastec Nitrogen Oxides Detector Tubes provide either separate or total quantification, always select the appropriate tube based on the desired measurement method and anticipated concentration range.

Follow the manufacturer's sampling instructions and correction factors, when applicable, for the specific detector tube being used.

Need a Gastec Sampling Pump?

Gastec detector tubes require a compatible Gastec Gas Sampling Pump for proper sampling and measurement. Complete your gas detection setup with one of our available Gastec sampling pumps:

Already have a Gastec pump? Simply select the appropriate nitrogen oxides detector tube based on your required measuring range and whether you need separate or total quantification.

Choose Instrument Depot for dependable Gastec nitrogen oxides detector tubes, NO detector tubes, NO₂ detector tubes, NOx gas detection tubes, gas sampling pumps, Gastec detector tubes, gas detection accessories, calibration gas, fixed flow regulators, and industrial gas detection equipment.