Method and system for gas detection

摘要: A system and method for using a gas detecting device that conducts electricity increasingly increasing concentration of being detected. The temperature sensor element is regulated to first burn-off impurities on the surface thereof, then cool down at or above which catalyzes. During catalyzation, electrically signals microprocessor data, controls three color LED so as emit pattern indicative level gas. sum previously measured levels taken gauge exposure over period time. detection includes self-calibration routine can be run prior normal use by successive varying concentrations determine element-specific reaction. output each known stored in nonvolatile memory during routine, calibration data compared values operation accurately detect levels. Audible alarms sound when exceeds predetermined hazardous level.