Excellent stability
High sensitivity
Alarm test button for easy testing( Test the smoke alarm weekly for your security by pressing the light button for at least 2 seconds until you hear the alarm sound.)
Loud 85dB audio alarm
Low battery indicator
Alarm Indication: Red LED flash
Easy to install with mounting hardware included
Designed for the fastest possible installation
CE and Rohs approval

Specifications:

Color: White
9V battery (included)
Operating Temperature: -10°C ~ 50°C
Operating Humidity: 95%RH
Detecting Area: 20 square meter

Packaging Included:

1 x smoke alarm
1 x 9V battery
1 x user manual (English)