Gas Detector Sensor Gas Detected Combustible Gas Measurement Range 0 to 100 ppm 0 to 5 Percent vol Compatible Detector Model/Series Quattro Sensor Type LEL Compatible Detector Manufacturer Part Number Quattro Series Quattro Sub-Brand BW Resolution 0.1 Percent vol 1 Percent vol Operating Temperature - Maximum 122 Degrees F Operating Temperature - Minimum -4 Degrees F Chemical Formula LEL