Dual Sensor Smoke Detector 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
Wanlin Fire Protection offers Battery Operated Smoke Alarm (WL-SM700) for the Johannesburg market: Dual-sensor smoke+heat, 80% lower false alarm rate, IP65 rated, kitchen-grade. Factory direct pricing