Detector Chip, Measurement Range 0.4 to10 ppm, Gas Detected Sulfur Dioxide, For Use With CMS Analyzer, Operating Pressure 700 to 1,100 hPa, Operating Temperature – Minimum 41 Degrees F, Tube Material Plastic, Calibrated Yes, Product Type Detector Chip, Application Industrial Applications, Sampling Time 40 to 300 sec (0.4 to 10 ppm), Chemical Formula SO2, CAS Number 7446-09-5, Operating Temperature – Maximum 86 Degrees F