In UL markings, which category covers signaling devices such as fire alarms?

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Multiple Choice

In UL markings, which category covers signaling devices such as fire alarms?

Explanation:
UL groups products by function, so signaling devices like fire alarms are placed in the signaling category because their primary role is to convey a warning or notification. This category specifically covers audible and visual warning devices that alert occupants or responders during an alarm event. The other categories describe different kinds of products—Electrical for general electrical equipment, Industrial for factory or heavy machinery, and Residential for consumer home products—none of which focus on the signaling function. So the signaling category best fits devices whose main purpose is to signal.

UL groups products by function, so signaling devices like fire alarms are placed in the signaling category because their primary role is to convey a warning or notification. This category specifically covers audible and visual warning devices that alert occupants or responders during an alarm event. The other categories describe different kinds of products—Electrical for general electrical equipment, Industrial for factory or heavy machinery, and Residential for consumer home products—none of which focus on the signaling function. So the signaling category best fits devices whose main purpose is to signal.

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