Wanlin Fire Protection offers Smoke Heat Composite Detector (WL-SM500) for the Sydney market: NB-IoT ultra-low-power, 8-year battery life, daily heartbeat report, massive deployment ready. Factory dir
Source Fire Smoke Sensor directly from Wanlin Fire, a leading Chinese manufacturer of Photoelectric Smoke Heat Detector. Product highlights: Dual-sensor smoke+heat, 80% lower false alarm rate, IP65 ra