Tip! (b) False. It’s true that radio waves cannot pass through metal, but a home would have to have steel walls, steel-plated floors, a sheet metal roof, iron support beams, and an aluminum staircase to prevent a wireless home security system from working.
The most basic home security alarm systems include a control panel, a keypad, a siren, access monitors and, in the case of monitored systems, an off site control station. These basic features are adequate for simple home protection against burglars but some people may opt for more advanced home security alarm systems that incorporate more advanced features. Home security alarm systems may include a smoke detection system, glass break detectors, panic buttons and motion detectors.
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Additional Features of a Home Security Alarm System
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