… Electric sound or visual signalling apparatus (for example, bells, sirens, indicator panels, …
Explanatory notes
… 85.31 ‑ Electric sound or visual signalling apparatus (for example, bells, sirens, indicator panels, … not covered by this heading but are classified in their own appropriate headings ( headings 83.10 , 94.05 , etc.). The … consist essentially of an electro‑magnetically operated appliance which causes a small hammer to vibrate and strike …