●Specification in accord with OSHA standard requirements
●Sound alarm at 93dB when concentration level of carbon monoxide exceeds 10ppm
●5ppm；Sound alarm setting can be adjusted at 5ppm carbon monoxide concentration level based on CSA standard or other country's requirement
●'Green' safety operation and red alarm device for easy visual check & monitoring
●Operate with 9 volt battery or 220V A.C.
●Use with 41P2 and 41P6, provides carbon monoxide monitoring for airline respirators