During the annual inspection of a mass notification system's visual appliances, what should be checked?

• A. The appliance rating or method of candela control marking
• B. The color of the housing
• C. The model number
• D. The mounting height

Answer: (A)

When inspecting visual notification appliances in a mass notification system, the key factor is confirming the device’s candela rating or the method used to control candela output. This marking shows how bright the strobe will be and how its output is regulated, which directly affects visibility, coverage, and compliance with applicable standards. The marking must be legible and must align with the system design and documentation so you can verify the device will meet the intended performance. Other details like housing color, model number, or mounting height aren’t the primary indicators of performance for this check, though they may be noted for overall condition. The emphasis here is on confirming the rated light output information that ensures proper operation and code compliance.