Echosounder

EchoLogger ECT 400S

Ultracompact echo sounder at 450kHz for precision bathymetric surveys, with integrated transducer and inclination sensor for professional underwater mapping. Available at DroneBase, DJI Gold 5 Dealer.
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Bathymetry with drone · DroneBaseEchoLogger ECT 400S

Ultra-compact single-frequency portable echo sounder for precision hydrographic surveys.
Designed specifically for bathymetric operations with professional DJI drones.

450 kHzAcoustic frequency 100 mMaximum range 5°Conical beam width 275 gSensor weight
EchoLogger ECT 400S
EchoLogger ECT 400S configuration
Ultra-compact designAll-in-one integrated system

Transducer, operating electronics and inclination sensor in a single ultra-compact unit. Includes integrated temperature sensor for maximum accuracy.

EchoLogger bathymetric system
RS232 interfaceIntegrated SkyHub connection

RS232 interface with dedicated SkyHub connector. 2.5m cable protected by plastic sheathing that supports the weight of the entire system.

Why choose itKey benefits

The EchoLogger ECT 400S represents the most advanced solution for professional bathymetric surveys with drones, combining millimetre-level precision and ultra-compact design.

450 kHz frequencyFrequency optimised for shallow waters with sediment penetration
Extreme precisionIntegrated inclination and temperature sensors for automatic compensation
Ultra-lightweightOnly 275g for the sensor, 1.6kg for the entire system with standard housing
100m rangeOperating range 0.15–100m ideal for coastal and river surveys
5° conical beamConcentrated beam for high-resolution seabed mapping
Drone readyCompatible with M210, M300 RTK, M350 RTK, M600 Pro with SkyHub system
The productEchoLogger ECT 400S — Professional echo sounder for drones

The EchoLogger ECT 400S is an ultra-compact echo sounder designed specifically for bathymetric surveys with professional drones. This device integrates transducer, operating electronics and inclination sensor in a single unit weighing just 275g, making it the ideal solution for high-precision underwater mapping. The 450 kHz frequency guarantees penetration through soft sediments to detect hard bottom classification. The system includes an integrated temperature sensor for automatic compensations and RS232 interface for direct connection to the SkyHub system. DroneBase, a DJI Gold 5 Dealer certified ISO 9001:2015, offers complete technical support and specialist assistance for integration on professional DJI UAV systems.

Technical dataFull specifications
SENSOR
ModelECT 400S
TypeSingle-frequency echo sounder
Acoustic frequency450 kHz
Measurement range0.15 – 100 m
Beam width (conical -3dB)5°
Sensor weight (in air)275 g
COMPLETE SYSTEM
Total weight (standard housing)1.6 kg
Total weight (reinforced housing)2.6 kg
Cable length2.5 m
InterfaceRS232
ConnectorDedicated SkyHub
INTEGRATED SENSORS
Inclination sensorIntegrated
Temperature sensorIntegrated
Automatic compensationYes
DRONE COMPATIBILITY
DJI M210Yes (lightweight housing)
DJI M300 RTKYes
DJI M350 RTKYes
DJI M600 ProYes
What’s in the boxWhat’s included
ECT 400S sensor
× 1 — with integrated transducer
Inclination sensor
× 1 — integrated
Temperature sensor
× 1 — integrated
Protective housing
× 1 — standard version
RS232 cable
× 1 — 2.5m with protective sheathing
SkyHub connector
× 1 — dedicated interface
Mounting system
× 1 — drone brackets
Harness
× 1 — integrated support
Use casesWho uses it
Civil engineeringBathymetric surveys for port projects, maritime works and coastal erosion monitoring
Environmental monitoringSedimentological studies, water pollution control and aquatic ecosystem monitoring
Hydrographic surveysSeabed mapping for navigation, nautical chart updates and port safety
Scientific researchUniversity studies, marine research and data acquisition for scientific publications
Marine archaeologyIdentification of submerged sites, wreck mapping and underwater heritage documentation
Fisheries and aquacultureSeabed mapping for aquaculture systems and identification of optimal fishing zones
Frequently asked questionsFAQ
Which DJI drones can I mount the ECT 400S on?
The ECT 400S is compatible with DJI M210 (with lightweight housing), M300 RTK, M350 RTK and M600 Pro. The SkyHub system is required for the interface and data management.
What is the difference between standard and reinforced housing?
The standard housing weighs 1.6kg total and is suitable for normal conditions. The reinforced housing (2.6kg) provides additional protection for operations in challenging marine conditions.
Can I use the ECT 400S without the SkyHub system?
No, the ECT 400S necessarily requires the SkyHub system for the RS232 interface, data management and integration with the UgCS control software.
What precision can I achieve with this echo sounder?
The ECT 400S provides millimetre-level precision thanks to integrated inclination and temperature sensors that automatically compensate for environmental variations during the survey.
Can the sensor penetrate through sediments?
Yes, the 450 kHz frequency allows penetration through soft sediments to detect hard bottom classification, ideal for sedimentological studies.
What software is needed to process the data?
The GUI software for real-time visualisation is included. For advanced processing it integrates with UgCS and other photogrammetry software to create 3D seabed models.
Buy EchoLogger ECT 400S from DroneBase

Pre and post-sales support · Express 24h shipping · Certified technical support · On-site demo

★ DJI Gold 5 DealerISO 9001:2015Technical supportOn-site demo

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Why DroneBase

The partner that neverleaves you grounded.

01 — Warranty
Official DJI Warranty
12-month full warranty on original product. Certified purchase from a DJI Gold 5 dealer.
02 — Logistics
24h Express Shipping
Orders placed by 1:00 PM ship the same day. Trackable throughout Italy. Professional packaging.
03 — Support
Dedicated Technical Support
Certified consultant assigned to your account. Unlimited pre- and post-sales support.
04 — Purchase
Free 14-Day Returns
Satisfied or refunded within 14 days of delivery. No-questions-asked policy, full refund.
Tax Incentives 2026

Buy professional drones.Recover up to 60% of your investment.

In 2026, stackable tax tools are active that significantly reduce the effective cost. Available for companies, self-employed professionals and public administration.

01 — Transition 4.0 Plan
Hyper Depreciation
Enhanced tax deduction for technologically advanced capital goods. Directly reduces the IRES/IRPEF taxable base.
+180% deduction up to €2.5M
Learn how it works →
02 — Italian Law Decree 69/2013
Nuova Sabatini
Non-repayable interest contribution on financing or leasing. Reduces credit costs to nearly zero.
Non-repayable grant Active until 2029
Check requirements →
03 — Stackability
Stackable Savings
The two instruments operate on separate levels and can be combined. On a €20,000 enterprise system you can recover up to €10,000–12,000.
50–60% recovery Stackable 2026
Request a simulation →
Technical 4.0 documentation support included. DroneBase assists you with the technical appraisal and interconnection requirements needed to access Hyper Depreciation.
Tax incentive details →
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