Gas Detector Sensor, Gas Detected Chlorine, Measurement Range 0 to 10 ppm, Compatible Detector Model/Series ALTAIR 5X, Compatible Detector Grainger Part Number 45KE54, 45KE55, Sensor Type Catalytic, For Detector Type Portable, T90 Response Time 15 sec, Compatible Detector Manufacturer Part Number 10116924, 10116925, 10116926, 10116927, 10116928, 10116929, Sensor Life 4 yr, Series ALTAIR 5X, Features Quick Response Time, Resolution 0.05 ppm, Operating Temperature – Maximum 104 Degrees F