... of tail gas recovery device, the detection is progressed with no environmental impact. Complete functions and advanced process technology · Big-screen ... : SO2+SOF2, H2S, HF≤±0.1µl/L CO≤±0.5µl/L, dew point ≤±1 RepeatabilitySO2+SOF2, H2S≤±2or ±0.1µl/L, whichever is ... , whichever is greater; HF≤±2% or ±0.1µl/L, whichever is greater; dew point ≤±1 or ±0.5, whichever is greater.RangeEffective range ...