DVL-300-DR-FA4
Precisely measures the velocity of the equipment relative to the seabed.
Widely used on surface vessels, underwater towed bodies, AUVs, ROVs, etc., to achieve precise control and navigation.
Titanium alloy as standard across the full range, featuring smaller size, lighter weight and enhanced reliability.
Key Features: 300kHz Direct-reading DVL
- Extended-Range Doppler Velocity LoggingDesigned for medium-depth underwater operations, offering reliable bottom tracking at greater altitudes, ideal for mid-range subsea vehicles and offshore missions.
- High-Accuracy Navigation PerformanceDelivers stable velocity and altitude data with excellent cumulative precision, supporting accurate dead-reckoning and real-time position feedback for underwater robotics.
- Robust 4-Beam Janus ConfigurationClassic 4-beam design ensures consistent and reliable data output, even in varied seabed conditions, sediment-laden environments, and dynamic flow disturbances.
- Rugged Titanium Alloy HousingCorrosion-resistant titanium construction with multiple pressure ratings (1000m/3000m/6000m), built to withstand demanding offshore and deep-water subsea conditions.
- Integrated Environmental & Attitude SensingEquipped with precision temperature, pressure, and high-stability attitude sensors to maintain measurement accuracy under dynamic roll, pitch, and heading conditions.
- Real-Time Data Output & Versatile Connectivity2 Hz update rate provides responsive velocity data, with RS-232/RS-422 interfaces for seamless integration with ROV/AUV control systems.
- On-Board Storage for Mission Data64 GB Micro SD memory records full operational data, enabling post-mission analysis, validation, and performance review.
- Efficient Low-Power OperationOptimized power consumption supports continuous operation on both tethered and battery-powered underwater platforms, suitable for extended subsea missions.
Overview



Specifications
| Technical Specification | DVL-300-DR-FA4 |
|---|---|
| Model | DVL-300-DR-FA4 |
| Pressure Rating | 1000m, 3000m, 6000m |
| Operating Frequency | 300kHz |
| Bottom Track Depth (Relative to Seabed Height) | 1 - 220m |
| Bottom Track Accuracy | ±0.5% ± 5mm/s (Cumulative Accuracy) |
| Water Tracking Depth (Relative to Seabed Height) | >220m |
| Height Measurement Accuracy | ±1% ± 0.5cm |
| Velocity Measurement Range | ±10m/s |
| Data Refresh Rate | 2Hz |
| Velocity Resolution | 1mm/s |
| Heading Accuracy | ±2° |
| Beam Angle | 20° |
| Beam Width | 3.5° |
| Beam Configuration | 4 Beams Janus |
| Internal Storage | 64 GB Micro SD Card |
| Communication Interface | RS-232 or RS-422 |
| Temperature Sensor | Range: -5°C to 45°C; Accuracy: ±0.1°C |
| Pressure Sensor | Range: According to depth rating; Accuracy: ±0.25% |
| Attitude Heading Reference Sensor | Range: Roll ±85° | Pitch ±85° | Heading 0-360°; Accuracy (RMS): Roll 0.2° | Pitch 0.2° | Heading 0.8°; Resolution: 0.1° |
| Average Power Consumption | ≤10W |
| Operating Temperature | -5°C - 45°C |
| Storage Temperature | -40°C - 70°C |
| Power Supply Interface | 20V - 50V |
| Maximum Transmit Power Consumption | ≤10W |
| Housing Material | Titanium Alloy |
| Weight (in Air / in Water) | 5.3 kg / 3.9 kg (1000m) | 6.6 kg / 5.0 kg (3000m) | 7.7 kg / 5.9 kg (6000m) |
| Dimensions (Excluding Top Connector) | Φ224 × 158 mm (1000m) | Φ230 × 158 mm (3000m) | Φ230 × 161 mm (6000m) |
Applications

ROV underwater robot

Oceanographic research vessel

Autonomous Underwater Vehicle
Why Choose Us?
High Reliability
Continuous operation: ≥100 days
Small Size
Far smaller size than global counterparts with equal performance
Cost-Effective
Stable performance, affordable and reliable
Manufacturer
Faster response & shorter delivery time
One Year Warranty
Extended warranty available. Contact us for details.
After-sales Service
After-sales support via email, telephone,social media such as WhatsAPP

Underwater navigation Instruments:DVL
Designed for Autonomous Underwater Vehicles(AUVs) and Remotely Operated Vehicle (ROVs), Oceantek Doppler Velocity Log delivers high-precision underwater navigation solutions.
DVL-300K:Bottom tracking depth ranges from 2m to 220m, perfectly suitable for core coastal scenarios.
DVL-600K:Bottom tracking depth ranges from 0.7m to 110m, perfectly suitable for core shallow water scenarios.