Ключевые слова: above, aged, box, burglar, camera, circuit, close, closed, cover, danger, detect, guard, heat, home, housing, infrared, insurance, lamp, looking, motion, motion sensor, mounted, movement, moving, old, outdoor, outdoors, passive, pir, plastic, protect, protection, red, room, safe, safety, security, sensor, spectator, spy, surveillance, system, thief, video, wall, watch, watching, white, wire,