... EN50194,UL1484;10.5 Year quality limited warranty; Gas alarm specifications:Power SupplyAC110V/220V, 50/60HZPower Consumption4WTypical ... developing and manufacturing high quality smoke, fire, toxic gas detection and air quality related products, our main products ... detectors (heat alarm), carbon monoxide detectors (CO alarm), gas detectors (gas alarm), water detectors (water alarm), please feel free ...