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. The 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. Each detector tube is 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.