Breakwire is an arrangement of electrically conducting wire, screen, tubing placed in front of accessible openings, which initiates an alarm signal when forcing or cutting the lattice breaks the wires. The purpose of breakwire sensors is to provide a means for detecting an intrusion into a normally secure area, when the intrusion is effected by a destructive penetration through a wall, floor, ceiling, door, skylight, or some other similar barrier, on which the grid system is installed. It is configured in fabricating screens, and grids, open wiring, and grooved stripping in various arrays as gridwire necessary to detect surreptitious and forcible entry.