... battery Powered Smoke Alarm ( smoke detector, security product,fire sensor) 1. Hush feature Smoke Alarm with Hush feature( smoke detector, security product,security product)1.Ionization Sensor ... .Low-battery and battery missing warning indicator9.Auto-reset when smoke clears10.CE, BSI, TUV, SAI Global approved, comply with ... .61 ~ 1.92 %/FT.OBS.Product Weight162g DC Operated Ionization Smoke Alarm