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Tag: battery smoke alarm alternative
- Wanlin Fire Protection Brings NB-IoT (B1/B3/B5/B8/B20/B28) NB-IoT Smart Smoke Alarm (WL-SM602) to Je2026-07-07
- Wanlin Fire Protection Brings 4G LTE + RS485 Modbus + LoRa 4G Industrial Addressable Smoke Detector 2026-07-07