Bathymetry sensors

Precision bathymetric and depth-mapping payloads for DJI Matrice 400 / 350 / 300 and compatible multirotor drones

The SPH Engineering EL-ECT series echo sounders bring professional-grade hydrographic surveying to aerial platforms.

Mounted beneath a stable hovering drone like the DJI M400, these systems measure underwater topography quickly and safely — eliminating the need for boats in shallow, remote, or hazardous waters.

Bathymetry sensors
Remote Robotic is an Authorized Canadian Dealer for SPH Engineering
We provide official integration support, warranty coverage, and turnkey deployment packages tailored for SPH Engineering equipment.

Why use a Drone Echo Sounder?

Survey anywhere

Reach shallow, remote, or contaminated water bodies where boats can’t operate.

High precision

Centimeter-level depth accuracy, down to 200 m.

Safety & efficiency

Operate from shore, minimizing manpower and risk.

Bathymetry sensors comparison

Features EL-ECT-400S EL-ECT-D24S EL-ECT-D052S
Frequency 450 kHz 200 + 450 kHz 50 + 200 kHz
Depth Range 0.15 – 100 m 0.15 – 200 m 1 – 200 m
Use case Shallow clear water, fine-detail mapping General use, light vegetation/silt Deep, silty, or sediment-heavy areas
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Recommended Packages

Field ready solutions with everything you need to start collecting data.

Shallow-Water Precision Kit
EL-ECT-400S + M400

For environmental or civil-works surveys in clear, shallow waters.

  • 5° beam at 450 kHz for razor-sharp bottom detail
  • Includes SkyHub + radar altimeter + mount kit
Get a quote
Most popular

All-Purpose Dual Kit M EL-ECT-D24S + M400

Handles varied depths and bottom conditions.

  • Switch between 200 kHz and 450 kHz for versatility
  • Ideal “do-everything” solution for survey teams
Get a quote

Deep-Sediment Survey Kit — EL-ECT-D052S + M400

Built for mining, tailings ponds, and silt-laden reservoirs.

  • 50 kHz channel penetrates soft sediment to hard bottom
Get a quote

Integration

Custom

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Bathymetry sensors FAQ

Buyer FAQs — Drone-Mounted Echo Sounder Systems

Each model is tuned for specific water conditions:

  • EL-ECT-400S (450 kHz) – ultra-shallow, high-resolution mapping.
  • EL-ECT-D24S (200 + 450 kHz) – best all-round option for most missions.
  • EL-ECT-D052S (50 + 200 kHz) – built for deep or sediment-heavy surveys.
  • EL-ECT-200S (200 kHz) – robust single-frequency system for general use.

All systems integrate with DJI M300 / M350 / M400 series using the SkyPort V3 or serial interfaces. Remote Robotic can also adapt them for other professional multirotor UAVs that support stable hover and RS-232/RS-485 communication.

Pricing depends on model, integration level, and included accessories:

  • Payload-only kits typically start around $12 000 CAD (EL-ECT-400S) and range up to $28 000 CAD (EL-ECT-D052S).
  • Turnkey Matrice 400 + echo sounder bundles start near $23 000 CAD and can exceed $40 000 CAD for fully equipped packages.
  • For accurate pricing, please contact our team for a quote.

Variables include:

  • Drone platform (M300, M350, M400)
  • Integration level (standard vs. advanced logging)
  • Add-ons (D-RTK 3 base, extra batteries, software licenses)
  • Training or data-processing services

Remote Robotic provides itemized quotes so you can align system capabilities with your operational budget.

They deliver± 1 cm vertical accuracy under typical survey conditions, verified with RTK GNSS positioning and proper calibration.

As an Authorized Canadian Dealer for SPH Engineering, Remote Robotic provides official manufacturer warranty, integration assistance, onboarding, and optional on-site or remote training.

  • 400S: up to 100 m
  • D24S / D052S: up to 200 m
  • 200S: approximately 150 m
    Lower-frequency channels (50 / 200 kHz) reach deeper and penetrate soft sediment.

Why Shop With Us

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