SM608-NB NB-IoT Smoke Detector
Independent photoelectric dual-sensing probe, NB-IoT wireless, 3V battery, ≤20uA standby, ≤500mA alarm current, alarm sound ≥80dB at 3m. Ceiling installation, battery life >3 years (20 triggers/day). Suitable for smart homes, offices, and commercial environments. Supported protocol: NB-IoT.
