DräGertubes, Chlorine 50/A: 50-500 Ppm, Box Of 10

Details:

Drägertubes® are glass vials filled with a chemical reagent that reacts to a specific chemical or family of chemicals. A calibrated 100ml sample of air is drawn through the tube with the dräger accuro® bellows pump. If the targeted chemical(s) is present the reagent in the tube changes color and the length of the color change typically indicates the measured concentration. The drägertubes® system is the world’s most popular form of gas detection.