A fire safety officer looks at the camera and speaks.
Moving image of a smoke alarm on a ceiling.
Moving image of a staircase.
A hand holds a smoke alarm in front of the camera.
A finger presses the button on a smoke alarm which then beeps.
A fire safety officer on a step ladder places a smoke alarm on a ceiling.
A still image of a smoke alarm in a box.
Moving images of smoke alarms on a ceiling.
The video ends.