When using an automatic REX device that is a motion sensor, it must be?

When using an automatic REX device that is a motion sensor, it must be?

• A. Installed to allow any activation
• B. Installed at eye level
• C. Listed for the intended purpose
• D. Integrated with multiple sensors

Answer: (C)

The requirement for an automatic REX (request to exit) device that is a motion sensor to be listed for the intended purpose is crucial for safety and functionality. When a device is listed, it means that it has been tested and meets specific standards set by recognized organizations or authorities. This ensures that the motion sensor operates reliably under expected conditions and scenarios in a controlled environment. Using listed devices contributes to overall security systems' integrity, ensuring that the REX will function properly when needed, such as during emergency exits. Ensuring devices are appropriately listed also aligns with code compliance and industry best practices, which help prevent potential failures that could compromise user safety. In contrast, aspects such as installation height or the integration of multiple sensors, while potentially important, do not guarantee the device will meet safety and operational requirements without ensuring it is specifically listed for the intended use.

The requirement for an automatic REX (request to exit) device that is a motion sensor to be listed for the intended purpose is crucial for safety and functionality. When a device is listed, it means that it has been tested and meets specific standards set by recognized organizations or authorities. This ensures that the motion sensor operates reliably under expected conditions and scenarios in a controlled environment.

Using listed devices contributes to overall security systems' integrity, ensuring that the REX will function properly when needed, such as during emergency exits. Ensuring devices are appropriately listed also aligns with code compliance and industry best practices, which help prevent potential failures that could compromise user safety.

In contrast, aspects such as installation height or the integration of multiple sensors, while potentially important, do not guarantee the device will meet safety and operational requirements without ensuring it is specifically listed for the intended use.