SG-7B/BYZ Marine Alarm:
China SG-7B/BYZ Marine Alarm:
SG-7B/BYZ Marine Alarm
1)Chapter 2 of Part 4 of the"Steel Ship Classification Rules" of the China Classification Society:
2)IMO resolution A.1021 (26) code on alerts and indicators,2009.

Colour: Dull black
Shell material: ABS
Alarm sound pressure level: 85dB~95dB
IP rating: IP22
The cable connect to hospital calling main unitis 2 wires





