In what scenario should alarm systems be tested?

Regular testing of alarm systems is essential to ensure they are functioning correctly and can provide the intended safety and security. Regular checks help identify any issues before they become critical problems, which could leave a property vulnerable. Systems can face wear and tear, environmental influences, or other factors that may impair their effectiveness over time. By testing the alarm systems regularly, it is easier to maintain operational integrity, update any needed components, and ensure the reliability of the system during emergencies.

The other options imply more situational testing rather than a proactive, systematic approach. Testing solely after installation overlooks the importance of ongoing monitoring to catch issues that may arise. Similarly, only testing before maintenance may miss other opportunities to assess the system. Relying on prompts from system alerts also may not account for hidden problems that could arise between alerts, leading to dangerous situations if the system isn't functioning as expected. Regular testing establishes a routine that promotes consistent safety and security standards.