fire door alarm for hospital

fire door closing audio alert direct from Wanlin Fire Protection — 12-year factory experience, WL-FD104 fully certified EN 1155/NFPA 80/CE/FCC/RoHS/REACH. Key specs: RF 433MHz + 4G LTE Backup, Magnetic Reed Switch + RF Wireless, 5-year replaceable battery (2x D lithium). MOQ 100 units, 25-30 working days, OEM/ODM custom branding available. Serving 60+ countr···

fire door closing mechanism direct from Wanlin Fire Protection — 12-year factory experience, WL-FD108 fully certified EN 1155/NFPA 80/CE/FCC/RoHS/REACH. Key specs: 4G LTE Cat.4 + WiFi 6 + Modbus RS485 + Matter, Premium Multi-Door Controller + LCD Display + Voice, AC 230V + 72h backup battery. MOQ 100 units, 25-30 working days, OEM/ODM custom branding availab···