ACJ Independent Smoke Alarm Wireless Smoke Fire Detector Security Protection Sound Alarm Sensor for Home Office Security

This product is a smoke alarm that can be used independently. Just install the battery and you can use it.

No need to link WiFi and alarm host. When the smoke alarm detects smoke and reaches a certain level, it will emit a high decibel sound alarm. Remind humans that there is a fire, in order to organize the occurrence of the fire in advance. Suitable for installation in dormitories, schools, kitchens, offices, and other places.