Gas Detection Tubes from Kitagawa offer accurate reading in minutes they are portable, safe, easy to use, with no power supply or calibration required and are an extremely low-cost analysis tool for your gas detection needs. The tube change colours when chemical reagents filled in a glass tube react with sampled target gas through the tube. The stain created is proportional in length to the concentration of the target gas, so the concentration is read directly off the printed scale on the tube. Used with a sample pump to draw air over the tube at a designated flow rate, gives you an indication of the level within minutes. Gas detection tubes require no calibration.

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