How to Test a Fire Alarm System: 12 Steps (with Pictures)
Jun 18, 2020· You can test the particle detector by spraying a can of Smoke Test aerosol near the alarm. To check if the smoke detector works, ignite 2 or 3 matches below the device and blow them out immediately, letting the smoke rise to the detector. If the alarm does not activate after any of these tests, your device may not be operating correctly.