As you know, electronic devices are not infallible. Smoke and carbon monoxide detectors, as well as sprinkler systems and fire alarms, are no different. Therefore, Service 1st Fire Protection LLC recommends you regularly inspect your fire protection systems to ensure they are functioning correctly. We take fire safety seriously, and so should you. Once a month, do the following:
Place someone at the furthest point from each detector and set the alarm off. If it sounds muffled or weak, consider adding extra detectors and alarms.
Press and hold the test button. If the sound is ear-piercing, then the batteries are good. Weak or non-existent sounds mean the battery is no longer functional, and you should replace it.