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Natural Gas Detector, Gas Leak Detector with 11-Inch Gooseneck, Locating The Source of Propane, Natural Gas, Methane, LP 【Effective Gas Leak Detector】This natural gas leak detector is suitable for LPG, benzene, methane, ethane, propane, butaTMHCRDS 
Gas Leak Detector, Natural Gas Detector with Audible and Visual Alarm, Portable Gas Sniffer for Home RV, High Sensitivit [High and Low Sensitivity Mode] The gas leak detector has double mode detection Low sensitivity: 500 to 1000 ppm; High sBest Value TOPTES 
TOPTES PT199 Gas Leak Detector, Natural Detector with Audible & Visual Alarm, Portable Sniffer to Locate Combustible Sou 【Combustible Gas Leak Detector】The TOPTES PT199 is suitable for LPG, methane, ethane, propane, butane, natural gas, coalRagyzity 
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