Robinair TIF8800A Combustible Gas Detector With Visual Leak Size Indicators Used in almost any situation where combustible gasses vapor or residues need to be found Applications include gas lines and pipes aids in identifying heat exchanger leaks and hazardous living and working environments Unique flexible 15 inch stainless probe allows you to access hard to reach places Adjustable sensitivity with an audible Geiger counter type signal The TIF8800A is NOT an effective Carbon Monoxide detector, see TIF8500A