Pull the smoke detector down from its bracket and hold your pen tester to the wires to be sure that the circuit is off. Step 3: Install the smoke detector’s mounting bracket.

The smoke and carbon monoxide detector's buzzer can reach 89 decibels from up to 3 meters away. The user can also choose to adjust volume levels within the app.

This type of fire accounts for 70 per cent of home fires. Photoelectric smoke detectors are more sensitive to slow-burning fires that may smoulder for hours before they erupt in flames.