Hi, Mark! I see a guy recommended you to consider a DIY variant. But I would never advise using such kinds of systems now. Well, they were quite worthy several decades ago when robbers did not know how to hack them. Now It's quite simple to do that using any YouTube video. That's why better to invest money in the future and choose a professional home alarm system. Ajax has a variety of unique devices. You can take a look at their catalog and choose what you need. I use their motion cam and smart door locks.