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Compact and convenient, these sensitive gas leak detection systems locate the smallest leaks with functions such as LED features and one-hand operation. Avantor also features gas leak detectors with three-color leak indication; visible and audible gas-concentration alarms; and thumb-controlled adjustable sensitivity to indicate hydrogen, methane, and other dangerous gases. For specific detection needs, Avantor provides instruments that indicate at 10% (LEL) Lower Explosive Limity for methane. Both battery-run gas leak detection systems with batteries and detectors with chargers are available.