Yes — 853110 covers burglar alarms, fire alarms, smoke detectors, and similar apparatus. A combination smoke and CO detector falls here because its principal function is safety alerting, consistent with the subheading's scope. If the device also incorporates a visual indicator panel as a secondary feature, classification still follows the principal function.

Subheading 853120 specifically captures indicator panels that incorporate LCD or LED technology as their display medium. General-purpose visual signaling devices — such as warning lights, horns, or non-panel sirens — fall under 853180. The distinction is whether the article is a panel-format display device using LCD/LED versus a standalone signaling unit.