upgradeable security system

month to month security direct from Wanlin Fire Protection — 12-year factory experience, WL-HK600 fully certified CE/EN14604/FCC/RoHS/REACH. Key specs: 4G LTE Cat.1 + WiFi + RF 433MHz Mesh, AI multi-sensor fusion, 4G+WiFi dual-path, Hybrid (hub: AC + 8h backup; sensors: 2-year CR123A). MOQ 100 kits, 25-30 working days, OEM/ODM custom branding available. Ser···