Door & Window Alarm Sensors Frequently Asked Questions

When Would I Need a Honeywell Steel Door Contact?
Steel doors present problems for traditional door/window sensors. A steel door magnet, which is a bit stronger can solve the problem.
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Do Honeywell 5815 door and window sensors have magnets?
Learn how the Honeywell 5815 door and window sensors work and their use of magnets in this Alarm Grid FAQ.
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