Brand: Xiaomi Name: Xiaomi Mijia Honeywell Fire Alarm Smoke DetectorBattery Model: CR123A, standard voltage 3VAlarm mode: Sound and light alarmAlarm classification: Fire alarm, fault alarm, low battery alarmAlarm sound level: 80dB or aboveStandby Time: About 1 yearWeight: 100gOperating temperature: -10 ～ +55 Degrees CelsiusInstallation location: CeilingSupported: Android and iOS versions: Android 4.4/iOS 8.0 or aboveNote: this device can be used alarm function independently, more function need to match the Xiaomi GatewaySpecification: 1. Original mijia smoke alarm,Remote alarm, the home danger is known in time.2. In stock mijia smoke alarm. Progressive sound alarm3. Self-check reminders in regularly4. Early detection of fire, as a family member.5. Easy to setup .