SS-300-HCL Extractive Laser Analysis System adopts TDLAS Tunable diode laser absorption spectroscope to measure HF concentration. It adopts special heated sampling probe which is able to work in high-temperature and high dust conditions, and hot & wet sampling system with little gas loss caused by gas condensing. Compare in-situ type gas analyzer, the extractive system has the advantages of no requirement of installation conditions, easy maintenance, little pollution to mirror, suitable for dirty sampling point with high dust.