Nb-IoT Smoke Alarm China manufacturer. 4G standalone smoke detector with dual optical path photoelectric sensing, 4G Cat.1 communication, DC6V battery (3-year life), ≥95dB alarm, ≥60sqm coverage. GB20517-2006 & CCCF certified. OEM/ODM, wholesale, global shipping to Germany. Contact: wanlinfirecontrol@163.com
NB-IoT smart smoke detector direct from Wanlin Fire Protection — 12-year factory experience, WL-SM600 fully certified CE/EN14604/FCC/RoHS/REACH. Key specs: 4G LTE Cat.1 + LoRa wireless, 10s alert push via APP/SMS/call, 10-year sealed lithium battery, CE/EN14604/FCC certified. MOQ 200pcs, 20-25 working days, OEM/ODM custom branding available. Serving 60+ cou···