Detector Chip, Measurement Range 100 to 3,000 ppm, Gas Detected Petroleum Hydrocarbons, For Use With CMS Analyzer, Operating Pressure 700 to 1,100 hPa, Operating Temperature – Minimum 32 Degrees F, Tube Material Plastic, Calibrated Yes, Product Type Detector Chip, Sampling Time 30 to 110 sec (100 to 3,000 ppm), Operating Temperature – Maximum 104 Degrees F