The D270 is a portable single-beam echosounder that can be easily integrated into USVs for a wide variety of high-accuracy bathymetric survey applications such as cross-sectional river surveys and reservoir capacity assessments. It features a built-in water temperature sensor that enables real-time sound velocity correction for enhanced depth measurement accuracy.
The Linux-based unit features intuitive web-based configuration and chart plotting, with 8GB of internal storage for extensive bathymetric survey data. The OLED display provides a comprehensive overview of a range of critical information, including voltage status, water depth, and GNSS satellite tracking, as well as more in-depth views of water temperature, sound velocity, and draft.
The D270 offers both Bluetooth and Wi-Fi connectivity, and supports optional wireless connection to a GNSS RTK receiver.
| Frequency | 200 kHz |
| Beam Width | 6.5°±1° (200 kHz) |
| Depth Range | 0.15 m to 200 m |
| Resolution | 0.01 m |
| Accuracy | ± 0.01 m + 0.1% x D (D = water depth) |
| Maximum sample rate | 30 Hz |
| Sound velocity adjustment range | 1300 m/s to 1700 m/s |
| Electrical Maximum transmit power | 300 W |
| Power consumption | 10 W |
| External power | 10-36 V DC / 100-240 V AC |
| Communication Operating system | Linux |
| Web page | Support PC/Mobile web pages/ Android APP |
| Ports | RS232 / Network port / Transducer port |
| Wi-Fi | 802.11n - 2.4 GHz |
| Bluetooth | BT5.0, compatible with BT2.X |
| Data format | CHCNAV, NAME SDDPT/SDDBT, Original waveform |
| Storage | 8 GB, support host to store water depth data |
| Voice prompt | Support shallow water tips |
| Water temperature sensor | -55°C ~ +125°C, real-time correction of the sound speed |
| Physical Size (L x W x H) | 25.7 cm × 12 cm × 6.4 cm (transducer) |
| Weight | 0.84 kg (host) 2.15 kg (transducer) |
| Environmental | Operating temperature: -20°C ~ +60°C (-4°F ~ +140°F) Storage temperature: -40°C ~ +70°C (-40°F ~ +158°F) |
| IP Rating | IP67 |
| Material | Aluminum Alloy |
| OLED display | 1.46 inch, resolution (of a photo) 128 x 128 |
