Gas Detector Sensor, Gas Detected Ammonia, Measurement Range 0 to 100 ppm, Compatible Detector Model/Series TX-12-AM, TX-6-AM, Compatible Detector Grainger Part Number 36CF97, 45CJ99, Sensor Type Electrochemical, For Detector Type Fixed, T90 Response Time 90 sec, Compatible Detector Manufacturer Part Number TX-12-AM, TX-6-AM, Sensor Life 2 yr, Series Commercial Series, Sub-Brand Macurco