Smoke alarms, high-sensitivity sensors and battery-powered technology, can detect smoke in real time and issue alarms to protect the safety of homes and businesses. After fire certification, sustainable work for up to 10 years. Integrated 4G Internet of Things function and cloud platform support, users can monitor the device status in real time through mobile phone applications, receive triple alarm reminders (sound, push notification, SMS/email), and respond quickly even if they are not on site, greatly improving fire prevention and Emergency response capabilities.