Features 1、【Remote Monitoring】Through the mobile APP, you can observe the dynamics of smoke in real time. Make your home smarter, no matter how far away from home. 2、【High Sensitivity Smoke Detection】When fire breaks out, the sensor will detect smoke sensitively, and send an alarm ringtone, then push notifications to your smartphone to protect people and property. 3、【85dB Loud Sound】Once triggered, the red LED will flash with loud high volume alarm sound, louder than 85dB. With test and silence key. 4、【Excellent Design /u0026 Super Quality】Exclusive smoke intelligent algorithm, high sensitivity, no false alarm, strong anti-interference. 5、【Widely Application】Easy to install and clean. Widely used in home, factory, school, shop, offices, villas, residential areas where fire prevention alarm is needed. Features: 【Remote Monitoring】Through the mobile APP, you can observe the dynamics of smoke in real time. Make your home smarter, no matter how far away from home. 【High Sensitivity Smoke Detection】When fire breaks out, the sensor will detect smoke sensitively, and send an alarm ringtone, then push notifications to your smartphone to protect people and property. 【85dB Loud Sound】Once triggered, the red LED will flash with loud high volume alarm sound, louder than 85dB. With test and silence key. 【Excellent Design & Super Quality】Exclusive smoke intelligent algorithm, high sensitivity, no false alarm, strong anti-interference. 【Widely Application】Easy to install and clean. Widely used in home, factory, school, shop, offices, villas, residential areas where fire prevention alarm is needed. Specifications: Power Supply: battery (not included) Standby Current: ≤30uA Alarm Current: ≤300mA Alarm Indication: Red led flash Sound Level: 85dB/3M Detecting Area: 20 square meter Alarm Output: WIFI Wireless Type: 2.4GHz Protocol: IEEE 802.11b/g/n APP: SmartLife/Tuya Operating Temperature: -10°C ~+50°C Operating Humidity: ≤95% RH Package Size: Approx. 13.5 * 13.2 * 4.5cm / 5.3 * 5.2 * 1.8in Package Weight: Approx. 180g / 6.3oz Package List: 1* WIFI Smoke Detector Package List 1* WIFI Smoke Detector