All its operations conform to the UL217 standard, resulting in this product is UL certified. It also promises to operate with no issues for up to ten years; a promise cemented with the 10 year guarantee you receive per purchase. This alarm system is excellent for use in your home as a means to protect yourself and your family. It alerts you in the event of an emergency such as death, disasters and other damages that may occur in your home. Silence/Test Button The ability to silence your alarm via a button is more straightforward than having to disable the entire unit. Look out for models that have silence buttons since they have been engineered to remain silent once activated until a persistent trigger is detected. There are some models with one silence button, and there are those that provide two buttons. For the latter, one button is meant for false alarms while the second button helps notify users of low battery power. It may vary, but usually, the low battery button can be silenced for more extended periods than the regular alarm. Smoke and fire detectors are an essential part of your home or apartment. Their loud, piercing alarms should wake you if there’s a problem, so you and your loved ones can safely escape, or put out the fire.