Photo 1 of KH Alert Natural Gas Detector, 3 in 1 Plug-in Propane Gas Detector(Gas, Temperature and Humidity Display)

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Photo 1 of KH Alert Natural Gas Detector, 3 in 1 Plug-in Propane Gas Detector(Gas, Temperature and Humidity Display)Photo 2 of KH Alert Natural Gas Detector, 3 in 1 Plug-in Propane Gas Detector(Gas, Temperature and Humidity Display)