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Access control

Doors, gates and turnstiles, with card, fingerprint or face, and the fail-safe behaviour decided deliberately rather than by default.

Every door gets a decision: fail-safe or fail-secure, what happens in a power cut, and who can override. We wire it that way and document it.

Common questions

Whatever you decided, per door, in writing, before anything was wired. A stock room stays locked. A fire exit releases. Getting that decision the wrong way round is the most expensive mistake in this trade.