... necessary. The PW-936 Stand-alone Gas detector series were designed to meet both UL1484 and ... UL1484;10.5 Year quality limited warranty;Gas detector specifications:Power SupplyAC110V/220V, 50/60HZPower Consumption4WTypical Current25mAOperation ... manufacturer of fire and security alarm products, including smoke detector, co detector, gas detector, heat detector, water detector, etc. more information, ...