fire door closing timer

Fire Door Ajar Alarm China manufacturer. UL 60930 and EN 16061 certified fire door alarm with real-time position monitoring, 4G wireless alert, fire door status tracking, OEM/ODM, wholesale, global shipping to Mexico. Contact: wanlinfirecontrol@163.com

Fire Door Monitoring System China manufacturer. UL 60930 and EN 16061 certified fire door alarm with real-time position monitoring, 4G wireless alert, fire door status tracking, OEM/ODM, wholesale, global shipping to USA. Contact: wanlinfirecontrol@163.com

Fire Door Electromagnetic Holder China manufacturer. UL 60930 and EN 16061 certified fire door alarm with real-time position monitoring, 4G wireless alert, fire door status tracking, OEM/ODM, wholesale, global shipping to Canada. Contact: wanlinfirecontrol@163.com

Fire Door Closing System China manufacturer. UL 60930 and EN 16061 certified fire door alarm with real-time position monitoring, 4G wireless alert, fire door status tracking, OEM/ODM, wholesale, global shipping to Mexico. Contact: wanlinfirecontrol@163.com

Fire Door Alarm Buzzer China manufacturer. UL 60930 and EN 16061 certified fire door alarm with real-time position monitoring, 4G wireless alert, fire door status tracking, OEM/ODM, wholesale, global shipping to Mexico. Contact: wanlinfirecontrol@163.com

fire door alarm with GSM direct from Wanlin Fire Protection — 12-year factory experience, WL-FD100 fully certified EN 1155/NFPA 80/CE/FCC/RoHS/REACH. Key specs: 4G LTE Cat.1 + WiFi, Magnetic Hold-Open + Position Sensor + 4G LTE, 10-year sealed lithium battery (non-replaceable) or AC 230V + 72h backup. MOQ 100 units, 25-30 working days, OEM/ODM custom brandi···