Home security system pricing varies enormously — from fully self-monitored DIY setups that cost nothing beyond the hardware, to professionally installed systems running $80 or more per month on a locked-in contract. Most people shopping for a system have no clear sense of what a fair price looks like, what’s included at each price point,...

A key fob is often the fastest way to interact with your security system. Instead of walking to a panel and typing a code every time you leave or arrive, you press a single button on your keychain and the system responds. For households with children, elderly family members, or anyone who would rather not...