Each SimpliSafe product has its battery life expectancy. Except for the entry sensor, all burglary sensors will last around three to five years. The entry sensor will last up to 10 years.

SimpliSafe is one of the better-known smart security systems out there. Here's how it works, and some of the benefits and drawbacks.

SimpliSafe offers two ways to arm your home security system — Home mode or Away mode. You can also turn your system off, disabling everything except the chime on your entry sensor and panic button.