Sulfur dioxide detection tube can be quickly detected without any energy or power supply. It has the characteristics of simple operation, easy to carry, and can detect sulfur dioxide in the air.

Operating method of sulfur dioxide detection tube:
Cut the two ends of the detection tube and use a positive pressure sampler to connect the zero end to the outlet. Sampling 50 milliliters and passing through the detection tube in 100 seconds can be read at the upper end of the yellow-white discoloration column.

Type I: 0.0002-0.01%
Type II: 0.002-0.1%
Note: The longer gas detection tube can be customized according to the user's needs.