Draeger Gas Detection Tube Hydrogen Sulfide 1/C 1-200 ppm Pack of 10

Standard Measuring Range: 10 to 200 / 1 to 20 ppm
Number of Strokes n: 1 / 10
Time for Measurement: Approx. 20 sec / 3 min
Standard Deviation: ± 5 to 10 %
Color Change: White → Pale Brown