Smoke Heat Composite Detector

China 2 in 1 Smoke Heat Alarm Supplier Spotlight: Wanlin WL-··· China 2 in 1 Smoke Hea··· 2026-05-31
2 in 1 Smoke Heat Alarm direct from Wanlin Fire Protection — 12-year factory experience, WL-SM400 fully certified CE/EN54/FCC/RoHS. Key specs: LoRaWAN protocol, 2-5km urban range, 500+ devices per gat