Fix the bracket

Drill a hole at the selected location, insert a plastic waist nail, and fix the mounting bracket with screws to ensure firmness.

Connect the detector

Align the card slot on the back of the smoke alarm with the bracket and rotate clockwise until it is fixed. Independent alarms do not require wiring, just install the battery directly.

Test function

After installation, press the test button to confirm that the alarm sound is above 80 decibels and the indicator light flashes, indicating normal operation.