Air Horn
- 38M Boat Automatic Fog Horn Controller with Air Horn
- DG15 Rotor Air Horn
- YQ-15 Diaphragm Air Horn
- Electric Whistle Piston Type HSD-161
- Marine Fog-signal Airhorn Type WD-1A
- Marine Fog-signal Airhorn Type WD-2A
- Electric Whistle Piston Type HSD-90
- HF2-2B Type Watertight Air Horn Button
- Marine Air Filter
- Aluminum alloy AJ-1 Morse Key