Home combustible best natural gas leak detector alarm with 9v battery

​The product(SR-908NSZ) is a smart combustible gas leak detector with voice prompt, microprocessor control, support displaying of the gas concentration. When trigger the gas detector, it will alarm with build-in siren. This detector adopt catalytic combustion method sensor which is stable and reliable. It keeps the place safe from the threats of combustible gas (such as liquefied petroleum gas, natural gas, pipeline gas,biogas,methaneetc.) More detail：https://www.firealarmfactory.com/best-natural-gas-detector.html