I have been telling people forever, if you have smoke alarms in your home, or smoke detectors tied to your alarm system, you need to invest in the $12 can of aerosol smoke test, and test your smokes properly.
Failure to do so, may just cost you your life (or the life of your loved ones).
FYI Vivint uses 2GIG smokes:
Contrary to popular belief, using the test button on a smoke alarm/detector (and yes there is a difference between the two), does not tell you if it will actually work in the event of a fire.Test your smokes at least every 6 months with aerosol smoke detector tester.
Can smoke test aerosol:
Where to buy:
Amazon, eBay, etc
How to test (test procedure same):
Firefighter/local smoke alarms:
2GIG/monitored smoke detectors: