An audio/visual fire signal device must be mounted at what height?

The appropriate mounting height for an audio/visual fire signal device is typically established to ensure optimal visibility and audibility for occupants while also adhering to safety regulations. When mounted between 6'-8" to 7'-6" above finished floor (AFF), the device is positioned at a height that balances accessibility and effectiveness.

This range allows the signals to be effectively seen and heard in a variety of room configurations and ensures that they are within the line of sight for standing adults, which is crucial in emergency situations. Devices installed at this height also help maximize safety compliance with relevant fire codes and standards, supporting their visibility during evacuations or alarms.

Mounting at profiles different from this range, such as at lower heights, may hinder the visibility or audibility of the signals, while ceilings could obstruct sound transmission or visibility. Thus, the specified range not only relates to human factors in emergency situations but also aligns with best practices in design and safety standards for fire alert systems.