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PANGAEA Digital Gas Detector | 0-9,999ppm & 1ppm Resolution Display | Portable Natural Gas Tester | Combustible Propane Methane Gas Sensor Sniffer with Sound Light Warning, Adjustable
SENSYX Digital Carbon Monoxide Meter | 0-9,999ppm & 1ppm Resolution Display with Temperature and Humidity | Gas Sensor Sniffer with Sound Light Warning, Adjustable