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IoT photoelectric smoke detector, NB-IoT Smart Gas Detector,···
IoT photoelectric smok···
2026-08-17
IoT photoelectric smoke detector — 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.
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Zigbee gas detector: Smart Fire Safety Solutions by Wanlin F···
Zigbee gas detector: S···
2026-08-17
Wanlin Fire Control — China's leading source manufacturer of Zigbee gas detector. 4G/NB-IoT/LoRa wireless smoke, gas, and CO detectors with CE/UL/EN certification. OEM/ODM, cloud monitoring, factory-direct pricing. Contact +8613261677119.
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Wanlin Fire Protection Brings NB-IoT (B1/B3/B5/B8/B20/B28) N···
Wanlin Fire Protection···
2026-07-07
smart fire protection system direct from Wanlin Fire Protection — 12-year factory experience, WL-SM602 fully certified CE/EN14604/FCC/RoHS/REACH. Key specs: NB-IoT (B1/B3/B5/B8/B20/B28) 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. Servin···
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