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Refrigerants gas detectors

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STY009-ST316V4 ADVANCED RECHARGEABLE REFRIGERANT LEAK DETECTOR- ALL CFCS/HCFCS +DITTO + R-507 (AZ-50) from USA Either Semiconductor or Infrared technologies are applied to this product family. Unlike the conventional semiconductor one, the infrared leak detector not only last longer but provide the contamination model to detect the smallest leak. Both type have 3 adjustable sensitivity levels and LET tip light. They start up with noticeable start-up melody (312/316) and easy recharged with USB power adaptor (312/316). The multiple colors LED are easy for users to identify the leak levels. Gas Leak Detectors