Source 3 in 1 Smoke Heat Carbon Monoxide Alarm directly from Wanlin Fire, a leading Chinese manufacturer of Photoelectric Smoke Heat Detector. Product highlights: Dual-sensor smoke+heat, 80% lower fal
Conventional 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