Smart Smoke Sensor Operating VoltageDC 5V Quiescent Current≤ 50 μA Battery Life≥ 6 months Alarm Current≤ 150 mA Sensitivity1~3%/FT(0.14~0.43dB/m) Alarm Volume≥80DB (A Weighted) 1m Distance Power-on Self-test Time20s Working Indicator LightFlashing Interval 60s