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Kitagawa Gas Detector Tube System
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Kitagawa Gas Detector Tube System

The Kitagawa Gas Detector Tube System is a complete sampling and analysis system for determining hazardous gas and vapour concentrations quickly and easily. The Kitagawa Gas Detector Tube System is comprised of an Air Sampling Pump and Precision Gas Detector Tubes.

Kitagawa Air Sampling Pump:

  • Reproducibly draws 100cc of sample air through the detector tube.
  • All detector tubes are calibrated for a single pump stroke, there is no need for multiple volumes or stroke counters.

Kitagawa Precision Gas Detector Tubes:

  • Formulated with high purity reagents that absorb and react with the target gas or vapour being measured.
  • A colorimetric stain is created that is proportional in length to the concentration.
  • For most tubes, the concentration is read directly off the measurement scale on each tube.
  • Detector tubes are available to measure more than 200 different kinds of gases and vapours.
  • For many gases and vapours, there are several concentration ranges available giving you the flexibility to measure both low and high concentrations without sacrificing precision.

For specific information, please refer to the list of detector tubes available.


Rubber Extension Hose. Article No. SH-5N, SH-10N

  • Useful for measurements in hazardous places such as manholes and tanks.
  • 5m (SH-5N) and 10m (SH-10N) in length.


Hot Air Probe. Article No. SF-4

  • Used when measuring gases with high temperatures, such as exhaust gas from a combustion appliance or an automobile.
  • 40cm in length
  • Durable at temperatures of up to 600 degrees Celsius

Hot Air Probe Holder. Article No. SFH-01

  • Used to fix the connection of Model AP-20 aspirating pump and Model SF-40 hot air probe to provide much stabler measurements.

Remote Extension Pole. Article No. SR-200R

  • It can be used when measurements are taken in areas that cannot be reached with hand (vertically and horizontally), or when they are taken in hazardous places.
  • The length of the pole is 2m, but measurements can be taken up to about 2.5m if you reach out with your hand. It is also easy to set the gas collector.
  • The gas collector in the photograph is not included.

Sampling Probe for Gases in Soil. Article No. SPG-1

  • A probe for a simple check whether chloride organic solvents such as trichloroethylene has polluted the soil.
  • 1m in length
  • A boring bar is required to dig a hole into the ground.



  1. Dig a hole in soil for soil sampling with a boring bar.
  2. Put a opened detector tube at the top of the sampling probe.
  3. Put the sampling probe in the hole first, then connect the probe to aspirating pump.
  4. Pull the handle of the aspirating pump to measure Chlorocarbons in soil.

Boring Bar for Sampling Probe for Gases in Soil. Article No. BORING BAR

  • A boring bar for Model SPG-1 sampling probe to dig a hole into the ground for sampling.
  • 1.5m in length, Maximum hole depth 86cm.

Tip Cutter. Article No. B-191

  • B-191 Tip Cutter in cutting ends of a detector tube avoids scattering of glass fragments.
  • Transparent container easily lets you know the amount of glass fragments.



  1. Insert the end of the detector tube into Tip Cutter and rotate by 360 degrees to score the glass tube.
  2. Hold the base of the detector tube and pull it toward you.

Tip Cutter for AP-20 Pump. Article No. TIP CUTTER FOR AP-20

  • Tip cutter for AP-20 series gas aspirating pumps.
  • Sold as a replacement for damaged or lost tip cutters.
  • 2 pcs in a bag.

NeedlEx. Article No. NeedlEx

  • Connect the NeedlEx to Model AP-20/AP-20N Air Sampling Pump and collect sample gas. You can extract the target compounds selectively in a short time.
  • Heat at the injection port of gas chromatograph can be used for the desorption of extracted gas.
  • NeedlEx can keep extracted gases for about 10 days with putting teflon plugs to both ends.
  • NeedlEx can be reused about 30 times with 3 minutes conditioning.
  • Click HERE to download a brochure for the NeedlEx.

Calibration Gas Set for Hydrogen Sulphide. Article No. H2S-1/H2S-2

  • Calibration Gas Set for Hydrogen Sulphide (H2S-1/H2S-2) is designed for generating calibration gas easily for H2S detection monitors or H2S detector tube.
  • Generate calibaration gas using H2S generation tube, Air pump, calibration bag contained in the kit.
  • You can confirm the concentration of generated calibration gas with the H2S detector tube contained in the kit.

Composition of H2S-1 Calibration Gas Set for Hydrogen Sulphide:

  1. Tube No. 296HA H2S generation tube
  2. Tube No. 296KY H2S absorbent tube
  3. Detector tube No.120SB for Hydrogen sulphide
  4. Air pump
  5. Calibration bag
  6. Silicon tube
  7. Tip cutter
  8. Bottle for generating water
  9. Bottle for waste
  10. Tube cock
  11. Generation tubes, absorbent tubes and detector tubes are for one-time use.

Composition of H2S-2 Calibration Gas Set for Hydrogen Sulphide:

  • Model H2S-1 Calibration gas set
  • Model AP-20 gas aspirating pump kit
Specifications of 296HA H2S generation tube:
Tube Number296HA
Generation SolutionWater (H2O)
Generation ConcentrationApprox. 20-40 ppm
Flow RateApprox. 0.5-2.0 Litres Per Minute
Feeding AmountApprox. 5 Litres
Generation MethodAbsorbing reagent absorbs water and acid is generated, then the acid reacts on celecium sulphide is produced.

Measurement Sets:

Toxic Gas Measurement Set for Disaster Relief. Article No. P-50/UFO-II H

  • When disasters occur all of a sudden, it is not uncommon for the rescuer to be hit by a secondary disaster.
  • Among various secondary disasters, toxic gas is extremely dangerous because it cannot be seen.
  • This set enables easy and quick measurements for toxic gases at the place of disaster.

P-50 set includes:

  1. Aspirating pump AP-20 (Qty 2)
  2. Remote collector tube (5m)
  3. Tip cutter B-191
  4. Container for used detector tubes
  5. Accessories
  6. Storage case
  7. Manual
  8. Qualitative analysis flow chart
  9. Qualitative analysis inorganic gas detector tube 131
  10. Qualitative analysis organic gas detector tube 186B

UFO-IIH set includes:

  • In addition to, those included in P-50 set, the following 20 kinds of detector tubes are included:
For Inorganic Gases    For Organic Gases
Ammonia 105SB    Toluene 124SA
Hydrogen sulfide 120SBAcetylene 101S
Carbon monoxide 106SAMethanol 119SA
Hydrogen cyanide 112SBEthylene oxide 122SA
Carbon disulfide 141SAMethylamine 227S
Carbon dioxide 126SAChloroform 152S
Chlorine gas 109SB 
Sulfurous acid gas 103SD 
Hydrogen chloride 173SB 
Hydrogen selenide 167S 
Phosgene 146S 
Hydrogen fluoride 156S 
Nitrogen oxides 174A 
Nitric acid 233S 

Salinity Measurement Set. Article No. P-30CL/P-30CL2

  • One of the main cause for deterioration of reinforced concrete durability is the salinity.
  • It has become a big problem as beach gravel is used more and more often.
  • To cope with this problem, construction standards control the allowable salinity in concretes assuring concrete durability.
  • P-30CL and P-30CL2 lets you measure the salt concentration in ready-mixed concrete or the fine aggregate quickly and accurately.
  • The salinity detector tube SL types used for this purpose, are quality evaluated product (No.860801) by Japan Institute of Construction Engineering.

P-30CL includes:

  1. 3 Syringes
  2. 3 Rubber Balls
  3. 30 SL Type, Salinity Detector Tubes
  4. Elastic Case

P-30CL2 includes:

  1. 3 Syringes
  2. 3 Rubber Balls
  3. 30 SL2 Type, Salinity Detector Tubes
  4. Elastic Case

Compressed Breathing Air Sampling System. Article No. P-41R

  • When impurities exist in the compressed air for respiration, it affects human health.
  • P-41R enables you to easily measure the impurities in compressed air by aerating the detector tube with an exclusive reducing valve from the gas cylinder.


  1. Control assembly, Including an adapter with W22-14RH Female thread for rescue and on-land cylinders
  2. International fitting yoke (for a scuba cylinder)
  3. Tube protector
  4. Tip cutter for Gas detector tube
  5. Wrench
  6. Digital stopwatch
  7. Carrying case (Aluminum)
  8. Gas detector tube (extra option)
  9. 50mL plastic syringe (optional accessories for Tube No.604SP only)
  10. 1m vinyl tube (optional accessories for Tube No.604SP only)
Customs Tariff Code
Kitagawa Gas Detector Tubes90269000


Download Kitagawa Gas Detector Tube System Brochure PDFDownload Kitagawa Gas Detector Tube System Brochure PDF

Download Kitagawa General Brochure PDFDownload Kitagawa General Brochure PDF

Download Kitagawa NeedlEx Brochure PDFDownload Kitagawa NeedlEx Brochure PDF


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Product CodeKIT3HIT017

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