fire alarm with history record

China fire equipment replacement -- Wanlin Fire Protection, 12-year Chinese smart fire protection product manufacturer, WL-SFP800 (Wireless Interconnected RF Mesh Smoke Alarm) certified EN54/EN14604/EN50291/CE. RF Mesh 868MHz + 24 Device Interconnect + 10-Year Battery + EN14604 + Voice Alert + Auto-R. MOQ from 100 units, OEM/ODM from 500 units, 15-20 day del···