nursery smoke alarm — Wanlin, 12-year Chinese smart fire detector manufacturer, WL-GA201 (NB-IoT Smart Gas Detector) certified UL/CE/EN54. Electrochemical/Semiconductor + NB-IoT + Cloud + Valve Control + 5-Year Battery. 10-year battery, 4G/NB-IoT/LoRaWAN, OEM/ODM from 500 units, factory direct pricing 50-70% below Western brands.
4G Smoke Alarm Supplier 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 South Africa. Contact: wanlinfirecontrol@163.com
Professional Smoke Detector Tester supplier with 12+ years experience. CE EN14604 UL ETL certified products shipped to 200+ countries. Telescopic pole, refillable aerosol, OEM supported. Contact: wanlinfirecontrol@163.com
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