Combustible leak detector with visual leak indication for quick, reliable leak detection around equipment and instrumentation. Highly reliable test instrument suitable for use around all types of refrigerants, alkanes, flammable liquids, and heating oil in instrument surroundings. Detects a wide range of hydrocarbons including methane, ethane, propane, benzene, acetylene, pentane, hexane, and oil components; also detects halogenated hydrocarbons and alcohols (for example methyl chloride, methanol, and ethanol). Portable detector for all flammable substances, enabling on-site checks without heavy equipment. Long flexible stainless steel probe reaches tight spaces and hard-to-access areas for thorough coverage. Use scenarios: - HVAC and refrigeration maintenance to locate refrigerant leaks around compressors, hoses, and fittings. - Fuel oil storage, boiler rooms, and piping to detect flammable hydrocarbon leaks. - Chemical processing or laboratory environments where flammable solvents are used and quick leak localization is required.