1. Cov ntsiab lus ceeb toom siab thiab qis tuaj yeem teeb tsa, ob-theem tswb, lub vijtsam qhia lub tswb qeb, ob-theem triple tswb (suab, teeb, vibration), uas tsis yooj yim rau tsis quav ntsej.
2. Sensor siab concentration tiv thaiv muaj nuj nqi
3. Muab lub sijhawm saib lub sijhawm ua haujlwm
4. Tsis siv neeg calibration muaj nuj nqi kom txo kev ntsuas qhov yuam kev
5. Fais fab-ntawm tus kheej-test muaj nuj nqi
6. Kev tswj tus password muaj nuj nqi, kev ua haujlwm tseem ceeb yuav tsum tau lees paub tus password, tiv thaiv kev ua haujlwm tsis zoo
