What should a DIY home security system include?

A DIY home security system should include enough door, window, and motion detection to cover the actual property—not just the devices in a starter kit. Depending on the home, it may also need sirens, cameras, smoke/CO devices, water-leak sensors, backup power, cellular communication, and either self-monitoring or professional monitoring. Houston homeowners should build a room-by-room coverage plan before choosing equipment.