If there are a lot of windows what wire might be used?

• A. 22/2 saves a few dollars
• B. 24/2
• C. 18/4
• D. 14/3

Answer: (A)

When wiring a building with many windows for an alarm system, you want a low-voltage two-conductor cable that is practical to pull through walls, reliable for the sensor current, and not overly expensive. A 22/2 cable fits that niche well: it’s thicker than the lighter 24 gauge, which helps with durability and a bit less resistance on longer runs, yet it stays affordable and commonly stocked, so using it across many window sensors can save money overall and keep installations consistent. The other options either provide too many conductors or are unnecessarily heavy for typical window contacts, making them less suited to a standard multi-window setup.