Features LOUD-CLEAR WARNINGS: An 80dB sirens ensures you won't missing an alert. STAY ALERT STAY SAFE: Receive instants apps notifications for smog detection. ALERT: An 80db alarm Provides a loud-alert in case of fire, ensuring that you are alerted to potential dangers even if you are sleeping or in a different part of your home or building Compact: The smart smog detector is not one of those ugly saucers on the ceiling or wall. It is a compact thing and looks fashion, the smog detector can be placed inconspicuously. EASY TO INSTALL: Our smog detectors & fire alarms is equipped with screws, stickers, very convenient to install at home or bedroom. Notice: Actual color may be slightly different from the image due to different light effect Please allow 1-3cm deviation due to manual measurement Description: Battery type: AAA x 2pcs (not included in shipment) Standby current: 26uA Alarm current: 120mA-130mA 5Battery life: 2500 triggers (1 triggers per day, 3 triggers per day, 2 triggers per day) Standby time: 1 year Sensitive distance: 6 meters Viewing angle: 110 degrees Operating temperature: 0 DegreeC~40 DegreeC (32 DegreeF~104 DegreeF) Working humidity: 20%~85% Storage temperature: 0 DegreeC~60 DegreeC (32 DegreeF~140 DegreeF) Packing list: Smog sensor*1, Instruction manual*1, Screw bag, Double-sided tape Quantity: 1/2/3pcs Package List: 1 Set Mini Smog Alarm Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store