ʻO ka hoa loiloi me Nernst O2/CO hiki ke ana i ka pākēneka maʻiʻo oxygen O2% i loko o ka flue a me ka umu ahi, ka waiwai PPM o carbon monoxide CO, ka waiwai o 12 kinoea puhi a me ka pono o ka puhi ahi i ka manawa maoli.
Hōʻike 'akomi iā 10-30~100% O2 maʻiʻo oxygen a me 0ppm~2000ppm CO maʻiʻo monoxide.