Carbon dioxide gas 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 the concentration of carbon dioxide in the air.

Method of Use of Carbon Dioxide Gas Detection Tube
All kinds of calibration pipes can be used with CZY-50 gas calibration pipes, such as cylindrical positive pressure sampler.
After washing the sampler with air, take a certain volume of air, cut the two ends of the calibration tube, connect the lower end of the calibration tube (the "0" end of the concentration gauge) to the outlet of the sampler (calibrator), pass through the calibration tube at a uniform speed according to the specified time, and then change the color column (or ring) according to the calibration tube. The upper indicator directly reads the percentage concentration of the measured gas.

Type I: 0.05-3%
Type II: 0.5-20%
Type III: 2-100%
Note: The longer gas detection tube can be customized according to the user's needs.