Alarm: when the detected smoke concentration exceeds, Red LED will flash quickly and the buzzer will give out quick “Di-Di-Di” alarm sounds.
Hush: when the smoke alarm is alarming, press the hush button, the device will enter hush mode for about 10 minutes; if in low battery warning status, press the hush button, the device will enter hush mode for about 12 hours.
Low Battery: When the battery power becomes low, the red LED will flash once and the smoke alarm will issue “Di” warning sound once every 53 seconds.