SimpliSafe Wireless Home Security System

I'd point most first-time alarm buyers to this 8-piece kit: it covers the basics — base station, keypad, motion sensor, and entry sensors — with wireless, no-drill setup and no contract required. Before you buy, count the doors and windows you actually want covered (you may need extra sensors), and decide whether you want the optional 24/7 professional monitoring or are comfortable self-monitoring through the app.