Intrusion Zone Calculator

Calculate alarm zone requirements.

Enter the perimeter doors value for this calculation.
Enter the windows value for this calculation.
Surface area measurement (length × width for rectangles).
Surface area measurement (length × width for rectangles).

Results

Total Zones:
Sum of all calculated values.
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Min Panel Zones:
Recommended size based on calculations.
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Zone Expanders:
Calculated zone expanders based on your inputs.
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Reference: ASIS/UL Standards. Intrusion panel zone planning.