Features:Remote monitoring via 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, the sensor will detect smoke sensitively, and send an alarm sound, then push notifications to your smartphone to protect people and property.80dB loud sound: Once triggered, the red LED flashes with high volume loud alarm sound, louder than 80dB.Excellent design and super quality: Exclusive smoke intelligent algorithm, high sensitivity, no false alarm, strong anti-interference.Application:Widely perfect full-loop patented structure, anti-disassembly bracket, easy to install and clean. Widely used in home, factory, school, shop, office, villa, residential areas where fire prevention alarm is needed.Specifications:Power Supply: 2 * LR03 DC3V (not included)Standby Current: 15uAAlarm Current: 160mAAlarm Indication: Red FlashingSound Level: 80dB/MDetection Area: 20 square metersAlarm Output: WIFIWireless Network Type: 2.4GHzProtocol: IEEE 802.11b/g/nAPP: SmartLIFE/TuyaWorking Temperature: -10C+50CHumidity: 95% RHItem Size: Approx. 8*8*4cm(L*W*H)Item Weight: Approx. 70g / 2.5 ozPackage Information:Item Size: Approx. 8.6 * 8.6 * 5cm / 3.4 * 3.4 * 2in (L * W * H)Item Weight: Approx. 90g / 3.2 ozPackage List:1 * WIFI Smoke Detector1 * Sticker Set