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combination smoke and CO alarm with UL certification

10-year battery smoke and CO alarm trend for Thailand: Premium Quality by Wanlin Fire Equipment Chin 2026-08-21
Wanlin Fire Equipment by Wanlin - China's leading source manufacturer of 10-year battery smoke and CO alarm trend. Photoelectric smoke sensor + electrochemical CO sensor, 10-year sealed battery, voice alert, smart app options, OEM/ODM. ISO 9001. CE FCC RoHS UL EN14604 certified. Contact +8613261677119.