Features and Benefits: Solid state sensor technology long life and precision Broad band of combustible gas detection Sensitivity as low as 5 ppm Adjustable sensitivity Audible Geiger counter signal LED Leak Intensity Lights Automatic warm up Cordless operation Flexible 16 stainless probe for hard to reach places Rechargeable battery and charger included IF8900 is the perfect tool to be used in a situation where a combustible gas vapor or residue needs to be found.Gas lines and PipesExhaust and Fuel leaksPropane filling stationsFuel in marine bilgesHeat Exchanger leaksCheck manholes for safetyDetect arson residueIAQ testsLiquid or gas fired heating systems