EA400 is unique in the market as an Autonomous Echosounder (450kHz) with many
useful practical features. It is optimized for sediment monitoring,
wave/tide monitoring, zooplankton studies with long term logging
capabilities. The device can also transmit accurate underwater backscatter data in real time using Bluetooth communication.
| Working Mode | Echosounder / Altimeter |
| Acoustic Frequency | 450 KHz |
| Beam Width | 5° (-3dB) Conical Beam |
| Transmited Pulse Duration | 10 μsec to 200 μsec in 10 μsec steps |
| Ranges | 0.15 m to 100 m |
| Temperature Resolution | 0.1°C |
| Temperature Accuracy | 0.5°C (-10°C to +50°C) |
| Sample Rate | 100 kHz |
| Water Column Resolution | Up to 7.5 mm |
| Repetition (Ping) Rate | Up to 10 Hz |
| Range Resolution | Up to 1 mm |
| Tilt sensor | Dual-axis, Horizontal Operation : ±90° (up, down) |
| Tilt sensor | Inclination Data Accuracy : 0.1° |
| PC Interface | USB 2.0 (Bluetooth v2.1 optional) |
| Data Output Format | Binary, ASCII TXT, NMEA0183 |
| Data Storage Mdeia | Micro SD Card (up to 32GB, SDHC) |
| Downloading Media | Removable Micro SD card, USB, Bluetooth |
| Activation | Magnetic Switch or Activation Button |
| Operation Mode Indication | Dual Color LED |
| Power Supply | 3 D-type Alkaline Batteries |
| Operation Lifetime | up to 1 Year (depend on ping rates) |
| Operation Temperature | -10°C to +50°C |
| Maximum Operating Depth | 100 m (deeper versions available on request) |
| Housing Material | PVC |
| Dimensions | D70mm x L260mm |
| Weight | 1.5kg in Air with Batteries (0.5kg in Water) |
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