**BUY NOW** | PORTACAL® Carbon Monoxide calibration gas. Carbon monoxide (CO) is an odorless, colorless gas that may build up in a confined space. In high concentrations of carbon monoxide, a worker may collapse with little or no warning. Carbon Monoxide also has many uses in industry.
Use PORTACAL® Carbon Monoxide calibration gas to be sure your gas detection instrumentation is functioning properly.
