Fast, clear alerts save time. In a real emergency, seconds matter. Here’s how a dedicated lockdown system helps you act—without confusion. Martyn's law or Terrorism (Protection of Premises) Act 2025).

1) Why they matter

Fire alarms tell people to leave. Lockdown alarms do the opposite. They keep people indoors, quiet, and safe. For the larger compliance picture, see From legislation to action.

2) Trigger from anywhere

• Wireless fobs or wall points around the site.
• Single-action activation under stress.
• Works in noisy or crowded conditions.

3) Clear alerts for staff and the public

Use a distinct tone and a short voice message so people don’t mistake it for a fire alarm.

4) Wireless vs wired

Wireless installs quickly, crosses obstructions like roads, waterways, avoids heavy cabling costs, and scales with you—useful for listed buildings, churches, or multi-block sites. If you want the background and history context, see Why the law exists.