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Marine Equipment
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Bridge Navigational Watch Alarm System Suppliers
A Bridge Navigational Watch Alarm System (BNWAS) sounds an alarm if the officer of the watch becomes unresponsive. SOLAS Chapter V Regulation 19 has required BNWAS on most ships above 150 GT since 2014. Without a working unit, the ship cannot legally sail.
Buying the right BNWAS is a long-term decision. Service support, spare parts availability, and class approvals all flow from the choice of supplier. Bridge Navigational Watch Alarm System suppliers vary widely in regional reach and after-sales coverage. RecordsMarine's directory groups vetted vendors by location, so superintendents can shortlist by trading area in one step.
Main Components of a BNWAS
A typical BNWAS package includes:
- Main controller and timer unit
- Bridge reset buttons (usually two or three)
- Motion sensors for hands-free reset
- Alarm sounders for the bridge, master's cabin, and crew areas
- Visual flashing alarm indicators
- Connections to GPS and VDR for status logging
- Backup battery and power supply
- Operator manual and class certificate.
Most BNWAS suppliers ship the system as a single package matched to the ship's accommodation layout. Sensor count and sounder placement scale with vessel size.
Brands on the Commercial Market
The BNWAS market is led by Daniamant, Furuno, JRC, Tokyo Keiki, McMurdo, and Marine Technologies. Daniamant holds strong share on European newbuilds. Furuno and JRC dominate Japanese shipyards. Tokyo Keiki and McMurdo cover the mid-market. Smaller regional makers serve specific national flags.
Each system carries IMO type approval but uses different reset codes, service software, and wiring layouts. Suppliers of BNWAS with direct manufacturer agreements deliver with full type approval certificates and matched commissioning support.
Newbuild vs Retrofit Installations
A newbuild BNWAS goes in during yard fit-out. The vendor and yard coordinate wiring and accommodation alarm placement during the design phase.
A retrofit takes more planning. Existing alarm panels must be tied in. Cabin sounders may need new wiring runs. Most retrofit jobs take three to seven days at berth, depending on cable routing and accommodation layout.
How to Choose a BNWAS Supplier
A BNWAS lasts 15 to 20 years on most ships. The wrong supplier creates support problems for the rest of that period. Before signing, confirm:
- IMO MSC.128(75) type approval for the model
- Class society certification matching your flag state
- Service network covering your trading region
- Spare parts are stocked for at least 15 years after delivery
- Commissioning and crew training are included in the price
- Warranty of 24 months minimum on a newbuild package.
Reliable suppliers provide all six without negotiation.
Integration with Other Bridge Systems
A modern BNWAS does not work in isolation. It connects to GPS for time-stamping, the VDR for incident recording, and the central alarm panel for escalation routing. Some integrated bridge packages include BNWAS as a software function rather than a separate unit. Others run it as standalone hardware. Both approaches meet SOLAS, but standalone units are easier to service and replace at the end of life.
Frequently Asked Questions
Can a BNWAS be bought separately from the bridge package?
Yes. Most ships fit a standalone BNWAS even when the bridge integrator offers an embedded option. Standalone units are easier to replace and service across different brands of bridge equipment.
What documentation comes with a new BNWAS?
The package includes the type approval certificate, an operator manual in English, a wiring diagram, a class survey checklist, and a warranty card. Keep all paperwork in the ship's technical file.
Are BNWAS units interchangeable between ships in a fleet?
The hardware is, but the wiring loom and sensor placement are vessel-specific. A spare unit held ashore can move between ships in the same class series, but rarely fits a different design without modification.
Find a BNWAS Supplier Near You
The directory below sorts vendors by region and brand coverage. Match the supplier service reach to your trading area before placing the order. After-sales support matters more in this category than headline price.

Year Founded: 2022
Verified
CATEGORIES:
BNWAS (Bridge Navigational Watch Alarm Systems)
Automation Control Equipment & Control Units
Boiler Automation Equipment
Communication Equipment
Electrical Cranes
Electrical Winch & Windlass
Emission Control & Monitoring Systems
Flow Measurement Equipment
Hydraulic Cranes
Hydraulic Operation Equipment
BRAND:
MARINELEC
SM Electrics
MGAcontrols
CONSILIUM
Navitron
(2)
WAREHOUSES:
Bangladesh

Year Founded: 2018
Verified
CATEGORIES:
BNWAS (Bridge Navigational Watch Alarm Systems)
15 PPM Monitoring Equipment
AIS (Automatic Identification Systems)
AMS (Alarm Monitoring Systems)
ARPA (Automatic Radar Plotting Aids)
(72)
BRAND:
Daniamant
MARINELEC
Jinbo
BI Industrial
SM Electrics
(21)
CLASS APPROVED:
ABS
ClassNK
CCS
BV
WAREHOUSES:
China

Year Founded: 2018
RM verified
CATEGORIES:
BNWAS (Bridge Navigational Watch Alarm Systems)
AIS (Automatic Identification Systems)
Anemometers
Autopilot
Compass (Gyro & Magnetic)
ECDIS (Electronic Chart Display Information System
Echo Sounder
GMDSS (Global Maritime Distress Safety Systems)
GPS (Global Positioning Systems)
Navigation Equipment
Radars
Speed Log
VDR (Voyage Data Recorder)
VHF (Very High Frequency)
VRCS (Valve Remote Control Systems)
(1)
WAREHOUSES:
China
India
Singapore

Year Founded: 2004
Verified
CATEGORIES:
BNWAS (Bridge Navigational Watch Alarm Systems)
Air Compressors
Engines (2-Stroke)
Engines (4-Stroke)
15 PPM Monitoring Equipment
AIS (Automatic Identification Systems)
AMS (Alarm Monitoring Systems)
ARPA (Automatic Radar Plotting Aids)
AUS (Automatic Unloading Systems)
Accommodation Ladder Davits
Accommodation Ladders & Gangways
Air Driven Motors
Air Horns
Air Reservoirs
Air Starters
(150)
CLASS APPROVED:
ClassNK
BV

Year Founded: 2018
RM verified
CATEGORIES:
BNWAS (Bridge Navigational Watch Alarm Systems)
15 PPM Monitoring Equipment
Accommodation Ladder Davits
Accommodation Ladders & Gangways
Air Compressors
Air Driven Motors
Air Horns
Air Reservoirs
Air Starters
AIS (Automatic Identification Systems)
Alpha Lubrication Systems
AMS (Alarm Monitoring Systems)
Anemometers
Anti-Heeling Systems
ARPA (Automatic Radar Plotting Aids)
AUS (Automatic Unloading Systems)
Automation Control Equipment & Control Units
Autopilot
BackWash Filters
Boat Engines
(151)
CATEGORIES:
BNWAS (Bridge Navigational Watch Alarm Systems)
AIS (Automatic Identification Systems)
Anemometers
Autopilot
ARPA (Automatic Radar Plotting Aids)
Communication Equipment
Compass (Gyro & Magnetic)
Conning Displays
DGPS (Differential GPS)
Echo Sounder
CLASS APPROVED:
ABS
RINA
RMRS
ClassNK
CCS
(16)
WAREHOUSES:
Poland

Year Founded: 2009
CATEGORIES:
BNWAS (Bridge Navigational Watch Alarm Systems)
15 PPM Monitoring Equipment
AIS (Automatic Identification Systems)
AMS (Alarm Monitoring Systems)
ARPA (Automatic Radar Plotting Aids)
AUS (Automatic Unloading Systems)
Accommodation Ladder Davits
Accommodation Ladders & Gangways
Air Compressors
Air Driven Motors
Air Horns
Air Reservoirs
Air Starters
Alpha Lubrication Systems
Anemometers
(160)
WAREHOUSES:
Bangladesh

Year Founded: 2024
CATEGORIES:
BNWAS (Bridge Navigational Watch Alarm Systems)
15 PPM Monitoring Equipment
AIS (Automatic Identification Systems)
AMS (Alarm Monitoring Systems)
ARPA (Automatic Radar Plotting Aids)
AUS (Automatic Unloading Systems)
Accommodation Ladder Davits
Accommodation Ladders & Gangways
Air Compressors
Air Driven Motors
Air Horns
Air Reservoirs
Air Starters
Alpha Lubrication Systems
Anemometers
(159)
WAREHOUSES:
Bangladesh

Year Founded: 2010
CATEGORIES:
BNWAS (Bridge Navigational Watch Alarm Systems)
AMS (Alarm Monitoring Systems)
ARPA (Automatic Radar Plotting Aids)
Accommodation Ladder Davits
Air Compressors
Air Driven Motors
Air Starters
Air Horns
Automation Control Equipment & Control Units
Autopilot
BWTS (Ballast Water Treatment Systems)
Boat Engines
Boiler Automation Equipment
CPP Systems (Controllable Pitch Propeller)
Centrifugal Pumps
(100)
WAREHOUSES:
India

Year Founded: 2010
CATEGORIES:
BNWAS (Bridge Navigational Watch Alarm Systems)
15 PPM Monitoring Equipment
AIS (Automatic Identification Systems)
AMS (Alarm Monitoring Systems)
Automation Control Equipment & Control Units
Autopilot
Boiler Automation Equipment
Boiler Forced Draft Fans
Communication Equipment
Compass (Gyro & Magnetic)
(43)
BRAND:
CONSILIUM
Navitron
KONGSBERG
VARD
HYUNDAI HEAVY INDUSTRIES LTD
(2)
WAREHOUSES:
Bangladesh
