600W-2kW Boat Depth Sounder | IMO-Compliant Marine Echo Sounder for Commercial Vessels

SAIYANG presents the 600W-2kW boat depth sounder – a navigational echo sounder marine that meets IMO standards MSC.74(69) Annex 4. Designed for commercial shipping, large workboats, and ocean-going vessels, this high-power sonar delivers ultra-low 0.2m shallow water detection, DSP clarity, and NMEA 0183 integration for critical navigation safety.

IMO-Compliant Navigation Safety

This echo sounder marine is built to satisfy IMO MSC.74(69) Annex 4 requirements – the international standard for performance of echo-sounding equipment on SOLAS vessels. If you operate cargo ships, tankers, passenger ferries, or any vessel subject to SOLAS regulations, this depth sounder meets the mandatory carriage requirements.

Key Technical Specifications

• Output Power: 600W-2kW – high-power for deep ocean and challenging bottom conditions
• Technology: High-progress DSP (Digital Signal Processing) – clean, stable bottom tracking
• Minimum Detectable Depth: 0.2 meters – ultra-low water detection for harbors and shallow approaches
• Data Output: NMEA 0183 depth data (DPT, DBT sentences) with print-out capability
• Languages: Multi-language support for international crews
• Compliance: IMO MSC.74(69) Annex 4 – suitable for SOLAS vessels
• Functionality: Underwater survey and fish detection (multi-functional models)

Critical Navigational Uses at Sea

For professional mariners, this boat depth sounder serves multiple essential purposes:

• Safe navigation in unclear waters or narrow channels – real-time depth under keel to prevent grounding
• Position fixing when visibility is poor or other instruments fail – depth contour matching for pilotage
• Hydrographic survey – measure water depth in operating areas to ensure safe passage
• Multi-functional operation – underwater survey and fish detection (on applicable models)

Why Choose This Marine Echo Sounder?

1. IMO MSC.74(69) Annex 4 Compliant

Not all depth sounders meet international maritime regulations. This unit is certified to IMO standards, making it suitable for commercial vessels that require SOLAS-compliant navigation equipment. Peace of mind for flag state inspections and port state control.

2. 3kW High Power for Deep Water

Standard 600W or 1kW sounders struggle in deep ocean or with soft bottoms that absorb sound. The 600W-2kW output ensures strong, reliable echoes even at great depths or over mud, silt, or clay bottoms – critical for large vessels operating offshore.

3. 0.2m Ultra-Low Shallow Detection

Many echo sounders lose accuracy in very shallow water (under 1m). This unit detects down to 0.2 meters – essential when navigating harbors, docking, or transiting shallow channels. Avoid grounding where other sounders would show only "0.0".

4. Advanced DSP for Clean Signal

High-progress Digital Signal Processing filters out noise from bubbles, turbulence, temperature layers, and other vessels. The result is a stable, jitter-free depth readout that navigators can trust – no false echoes or dropouts.

5. NMEA 0183 Integration & Print-Out

Connects seamlessly to your existing navigation network. Output depth data (DPT, DBT) to chartplotters, radar, auto-pilots, and voyage data recorders. Print-out capability provides paper records required by some flag states or operators.

Applications Beyond Commercial Shipping

• Offshore supply vessels & tugs – critical for dynamic positioning and shallow approaches
• Ferries & Ro-Ro vessels – daily harbor navigation, docking, and channel transit
• Research & survey vessels – precise depth data for hydrographic work
• Large fishing vessels & factory trawlers – combined with fish detection capabilities
• Government & military auxiliaries – IMO compliance for naval support ships

Technical Characteristics at a Glance

• Power: 600W-2kW – high-power class
• Minimum depth: 0.2m (0.65 ft)
• DSP technology: High-progress digital signal processing
• Data interface: NMEA 0183 (DPT, DBT sentences)
• Print-out: Yes (serial printer support)
• Languages: Multiple (English, Chinese, others on request)
• Compliance: IMO MSC.74(69) Annex 4
• Construction: Marine-grade, for wheelhouse mounting

Frequently Asked Questions

What does IMO MSC.74(69) Annex 4 compliance mean?

It means this echo sounder marine meets the international performance standards adopted by the International Maritime Organization for echo-sounding equipment on SOLAS (Safety of Life at Sea) vessels. It is accepted by flag state inspectors and port state control officers.

Is this suitable for my vessel if it's not SOLAS class?

Absolutely. Many non-SOLAS vessels (workboats, fishing vessels, research ships) still require or prefer IMO-compliant equipment for reliability and to meet client or insurance requirements.

What's the difference between 1kW and 2kW?

2kW provides greater depth penetration and better bottom discrimination in deep water, soft bottoms, or challenging acoustic conditions. It maintains a clean signal where lower power units may lose bottom lock.

Can I use this for fish finding as well?

Multi-functional models of this echo sounder support fish detection. Contact our technical team with your specific requirements (fishing vs. pure navigation) for the right configuration.

Do you provide CCS or other classification society approval?

Yes. While this unit meets IMO standards, we can also supply it with CCS (China Classification Society) or other class-approved documentation upon request for specific vessel registries.

Compliance & Quality Assurance

SAIYANG manufactures this navigational echo sounder in an ISO9001 certified facility. Each unit is tested for IMO MSC.74(69) Annex 4 conformance, and we maintain full traceability for commercial fleet operators and shipyards. For new builds or retrofits, ask about our documentation packages for class approval.

Technical parameters：

Power Supply	DC 24V (11~35V)
Output Power	600～2000W
Frequency	50&200KHz
Display
Type	10"
Resolution	800×600px
Language	Simplified Chinese, English, Traditional Chinese
Expansion Mode	Auto/Manual/Bottom Lock
Background Color	Black, blue
Sweep Speed	7steps(Stop,1/8,1/4,1/2,×1,×2,×3)
Characteristics
Accuracy	±1%
Lowest Blind	0.3m
Alarm	Depth, Voltage
Depth Uint	m, ft, fa
SD Card	Save screen images and quickly update the program
Temperature	-10℃～40℃
Interface
NMEA Input	IEC61162-1(NMEA0183)RMC, GLL
NMEA Output	IEC61162-1(NMEA0183)DPT, DBT(After GLL and RMC Input)
Serial port to print	Suitable for printer DPU-414

Hot Tags: echo sounder marine, manufacturers, suppliers, wholesale, custom, buy, best, price, on sale, for sale