K800 Explosion Proof Gas Analyzer Fixed NH3 Gas Detector The K800 Series Fixed Gas Detector provides comprehensive monitoring of combustible, toxic gas hazards in potentially explosive atmospheres, indoors and outdoors-and is marked by installation ease and flexibility, user-friendly operation and cost-effective gas monitoring. Key Features: Application: The detector working with gas controller are widely used to detect gas in refinery, chemical plant, LPG station, boiler