1.Technical standard: GB 4715-2005(highest national Standard) 2.Working voltage: DC18～26V 3.Monitoring current: ≤350uA 4.Alarm current: ≤1.5mA 5.Confirm light(RED): Flash 6.Working Temp: -10℃～+55℃ 7.RH: ≤95% 8.Max airflow speed: ≤5m/sec 9.Size: Φ90×41.5 mm 10.Weight: 100g 11.Color: White