HDG-AN Whistle Button:

China HDG-AN Whistle Button:

HDG-AN Whistle Button

1) Annex III of Convention on The International Regulations for Preventing Collision at Sea (COLREG) 1972 and its Amendments.
2)Maritime Administration of the People's Republic of China: "Regulations on Legal Inspection of Ships and Marine Facilities-Domestic Navigation Sea Vessels Legal Inspection Regulations" Chapter 13 of Part 4
3) Maritime Administration of the People's Republic of China: "Regulations on Legal Inspection of Ships and Marine Facilities -Domestic Navigation Sea Vessels Legal Inspection Regulations" Chapter 8 of Part 4
4)IEC 60945:2002/COR1:2008 Maritime Navigation and Radiocommunication Equipment and Systems-General Requirements-Methods of Testing and Require Test Results.

Colour: Dull black

Shell material: ABS

Cable gland: 2-PG16

IP rating: IP44

Manual alarm button's push frequency to control the relevant signal from the fog horn