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2019 New Natural Gas Detector that utilizes sophisticated electronic components and sensor technology to protect you aTechnical Specification: Adopting high-quality semiconductor calefaction type sensor. MCU intelligent supervise control and SMT chip technology. Visual and audible alarm function. LED numeric display technology, display instant gas leak thickness. Three indicators: POWER, STATE, ALARM Detecting gas: LPG, natural gas, and coal gas Power frequency: 50/60Hz Power supply: AC100V~AC240V Rated load: