Feature:The alarms LED indicator lights up in red and strobes , and an audible alarm is sent to the Tuya APP via the Wifi network.With built-in buzzer, once smoke or fire hazard is detectedthe red indicator light of the detector flashes immediately,and an alarm sound exceeding 90db is emitted.When smoke concentration exceeds the limit the detector will immediately send alarm signal and app push notifications to the user.Prevent trouble before it happens360 % intake photoelectric sensor , full detection of smoke.Widely used in fire prevention fields including homes , warehouses , hotels , factories , shopping.Specification:Item: Smoke DetectorColor: WhiteMaterial: ABSPower Supply: DC9VQuiescent Current: <10uaAlarm Current: <100MAWorking Temperature: 0℃~+ 50℃Relative Humidity : < 95 % RH, no CondensationAlarm Sound: 90 80dbBattery Low Voltage Alarm:< 7V±0.2VSize: 107*48mmPackage Size: 11.3*11.8*5.6cmPackage Weight: 201gPackage List:1* Smoke Detector