Carbon Monoxide Gas Detectors (CO Detectors)

CO - Carbon Monoxide - steel mills, fire departments, garages, loading docks, electrical utilities, and general industriesCarbon monoxide (CO) is used by the chemical industry in the production of inorganic chemicals, as a reducing agent in metals refining, in food packaging, steel mills, loading docks, and electrical utilities. Particularly in danger of carbon monoxide exposure, are workers near or within confined spaces where CO is a byproduct of combustions. These areas include manholes, splicing vehicles, garages, tunnels, loading docks, warehouses, and vehicle repair shops. Industrial Scientific provides single-gas carbon monoxide detectors including the GasBadge® Pro and Tango® TX1, multi-gas detectors including the Ventis® Pro with LENS™ Wireless, and the Radius® BZ1 Area Monitor.

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Carbon Monoxide - CO




Will explode; LEL 12.5% 



Extremely toxic


Carbon oxide, flue gas, monoxide 

Exposure limits: 


PEL\TWA: 50 ppm 



STEL: 400 ppm/ 15 min. 



IDLH: 1500 ppm / 30 min. 


steel mills, fire departments, garages, loading docks, electrical utilities, and general industries 

Carbon monoxide is a colorless gas. To the human senses, it is invisible. Carbon monoxide is a byproduct of combustion and will appear naturally in any situation where burning has taken place.

Carbon monoxide is a highly toxic gas which is termed a toxic asphyxiant, meaning it reduces the oxygen transport properties of the blood. It reacts with the hemoglobin in the blood-forming carboxyhemoglobin which prevents the hemoglobin from transferring oxygen. Low PPM doses of carbon monoxide can cause headaches and dizziness. If the victim is removed to fresh air no permanent damages will result. High doses can be fatal.

Effects of Various CO Levels 

Carbon Monoxide Level in PPM

Resulting Conditions on Humans


Permissible Exposure Level for 8 hours (OSHA).


Possible mild frontal headache in 2 to 3 hours.


Frontal headache and nausea after 1 to 2 hours. Occipital after 2-1/2 to 3-1/2 hours.


Headache, dizziness, and nausea in 45 minutes. Collapse and possible death in 2 hours.


Headache, dizziness, and nausea in 20 minutes. Collapse and death in 1 hour.


Headache and dizziness in 5 to 10 minutes. Unconsciousness and danger of death in 30 minutes.


Headache and dizziness in 1 to 2 minutes. Unconsciousness and danger of death in 10 to 15 minutes.


Immediate effects-unconsciousness. Danger of death in 1 to 3 minutes.

Source: American Industrial Hygiene Association


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