Tus kws tshuaj ntsuam xyuas nrog Nernst O2/ CO sojntsuam tuaj yeem ntsuas cov pa oxygen feem pua O2% nyob rau hauv lub tshuab hluav taws xob thiab qhov cub, tus nqi PPM ntawm carbon monoxide CO, tus nqi ntawm 12 combustible gases thiab combustion efficiency ntawm lub combustion cub nyob rau hauv lub sij hawm.
Tsis siv neeg tso saib 10-30~ 100% O2 cov ntsiab lus oxygen thiab 0ppm ~ 2000ppm CO carbon monoxide cov ntsiab lus.