Focusing lens：Monitor focusing lens status and detect lens pollution
Ambient temperature：Monitor focusing lens environment temperature
Cavity temperature：Monitor laser head cavity temperature avoid thermal effect to optical device
Cavity humidity：Monitor cavity humidity and avoid dewing
Cavity pressure：Monitor cavity pressure and cavity seal tightness
Protective window：Monitor protective window temperature to guarantee cutting quality
Gas pressure：Monitor output gas flow in production and avoid gas pressure fluctuation damaging cutting edge quality
Capacitcance：Monitor distance from workpiece and nozzle
Ambient temperature：Monitor ambient temperature around sensor head
Cut gas temperature：Monitor gas temperature to avoid heated gas affecting cutting edge quality
