Accurate & Sensitive: The Photoelectric Smoke Alarm Adopts Optimized Photoelectric Technology, Which Can More Sensitively, Quickly, And Accurately Measure Smoke Levels. When Smoke Or Fire Is Detected, The Red Indicator Light Of The Detector Immediately Flashes Within A Range Of 3 Meters, Emitting An Alarm Sound Of 85 Decibels.

Test & Mute Button: The Fire Alarm Smoke Detector Has A Silent Test Button. Before Using The Test Smoke Alarm, Observe Whether The Battery Of The Fire Alarm Smoke Detector Is Running Normally By Pressing The Test Button. When The Battery Level Of The Smoke Alarm Is Too Low, The Detector Will Sound A Low Battery Alarm.

What's in the box
1 x Door Magnetic Alarm