Older homes here have more openings than a modern floor plan, several exterior doors, a porch enclosed at some point, transom and single-pane windows. Our home alarm systems in Tarpon Springs use wireless contacts, so a century-old house gets full coverage without pulling cable through original plaster.
Motion detectors handle the interior, and glass-break sensors listen at the windows worth watching. Water sensors near the heater, air handler and laundry hookup catch a slow leak early, which counts on low-lying lots near the river.