Gfg 1418-170 Portable Micro Iv Single Gas Detector – Ammonia (Nh3) – Instrument Only, 1 Ppm Res. / 0 – 200 Ppm Range

GFG 1418-170 Portable Micro IV Single Gas Detector – Ammonia (NH3) – Instrument Only, Does not include calibration adapter P/N 7770-201C / 1 ppm Res. / 0 – 200 ppm Range