altPicarro, Inc. (Sunnyvale, CA) now offers an analyzer for monitoring trace levels of H2S (hydrogen sulfide) in ambient air, with a low detection limit of 1 ppbv. Based on the company’s WS-CRDS (Wavelength-Scanned Cavity Ring Down Spectroscopy) technology, the Picarro G1104 H2S analyzer provides a large dynamic range up to 300 ppmv, operates in real time (seconds), and has no requirement for frequent calibration. The G1104 H2S analyzer does not suffer from cross-talk due to changes in other ambient gas components, including trace sulfur compounds such as SO2 and COS.

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