Features: WIFI smokes alarm, which realizes intelligent networking function, can remotely monitors the situation at homes at anytimes and find abnormal smokes in time. The detector smokes alarm have high sensitivity, responds in time and sends out a strong warning sound, effectively reminding users to take safety measure. Combining detection and alarm functions, it provide comprehensive smokes safety protections for your homes and office environment. High sensitivity, can quickly detect smokes, start the alarm system in time, and protect the safe of family and property. The design is simple and convenient, easy to install and maintain, and do not occupy too much space. It is good option for home and office security protections. Individuals or families who need to increase their awareness of fire safety in their homes or workplaces. Families who often travel, go on business trip or have old people and children to take care of. Users who are interested in networked intelligent devices or have related needs. Installed in the living room, bedroom, kitchen and other areas at homes, to ensures the safe of family member at homes, especially children and the elderly. Specifications: Component:ABS Size:Approx.80x52x38mm/3.14x2.05x1.5inch Input Voltages:DC3V Statics Current:≤15uA Alarm Current:≤160mA Low Voltages Notification:≤2.4V Alarm Sound Level:80db/1m Working Temperature:-10℃~+50℃ Working Humidity:≤95%RH Battery type: AAAx2pcs Current: 26uA Alarm current: 120mA-130mA. Sensitive distance: 6meters Angle of view: 110 degrees Operating temperature:0℃~40℃（32°F~104°F） Working humidity: 20% ~ 85% Storage temperature: 0℃~60℃（32°F~140°F） Package Includes: 1pcs Smokes Detector note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual coloring of the item. Thanks for your understandings.