YellowScan Navigator (Bathymetric)

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The YellowScan bathymetric LiDAR is an innovative solution for exploring underwater and ground topography with a single-button operation

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The YellowScan bathymetric LiDAR is an innovative solution for exploring underwater and ground topography with a single-button operation.

Its lightweight design allows for versatile platform selection without compromising water penetration.


Key figures
AGL Altitude - Up to 100m
System precision - 3cm
System accuracy - 3cm
Battery weight excl. - 3.7kg


Multi-platform adaptability

This system can be used on multirotor or helicopter UAVs. When it comes to drones, the “quick release” GREMSY attachment allows for easy mounting on a wide range of drones.


Simultaneous land & water survey

The YellowScan Bathymetric system is designed for conducting bathymetric measurements in shallow waters and is rapidly deployable on a UAV. This full waveform LiDAR system ensures continuity between underwater points and the surrounding terrain.


Diverse water environments

Intended for aerial use on drones, the system covers various water areas such as shorelines, rivers, lakes, estuaries, ponds and gravel pits. Navigator is user-friendly and adaptable for a wide range of applications, from hydrographic surveys to underwater resource management.


44° FOV for high precision

Our bathymetric system, with a 44-degree field of view, prioritizes precision over a broader angle. This decision is based on the fact that 44° is the maximum angle for a green laser to perform effectively underwater. Beyond this angle, the laser’s penetration depth in water is significantly affected, limiting the system’s overall performance.


High autonomy for maximized efficiency

Optimize your bathymetric survey operations with our LiDAR system, delivering a 45-minute autonomy on a single battery charge for extended underwater data collection in various marine settings.


Embedded camera

The Navigator features an embedded camera (global shutter) that can be used for colorization purposes.


Underwater point correction

The underwater point correction in the CloudStation refines submerged data points, taking into account water refraction and ensuring reliable bathymetric mapping with uncompromised accuracy.


Automated water classification

Optimize your bathymetric capabilities using YellowScan CloudStation software, which includes automatic water classification. This functionality streamlines the categorization of water bodies, enhancing the efficiency and precision of bathymetric mapping.


Automated water surface detection

Our software’s capability for automated water surface detection efficiently identifies water boundaries, streamlining data analysis for precise bathymetric mapping.



Product Specifications

Precision: 3 cm (1.2")

Accuracy: 3 cm (1.2")

Max. water depth: 2 Secchi

Typ. flight speed: 5 m/s

Max. AGL altitude: 100 m

Laser range: Up to 120 m

Laser scanner: YellowScan development

GNSS-Inertial solution: SBG Quanta Micro

Scanner field-of-view: 44°

Integrated camera: Built-in global shutter

Echoes per shot: Up to 10

Shots per second: Up to 20 000

Scanning frequency: Up to 50 Hz

Weight: 3.7 kg (8.2 lbs) battery excl.

Size: L 350 x W 160 x H 190 mm

Autonomy: 45 min. typ.

Power consumption: 120 W

Operating temperature: 0° to +40 °C

Nominal ocular hazard distance: 25 m

Laser class: Class 3B

In the box


YellowScan Navigator × 1
Charger × 1
Batteries  × 2
GNSS Antenna AV18 × 1
USB flash drives × 2
Rugged pelicase × 1
Documentation × 1


By buying from Ferntech, you'll have the confidence that you are dealing directly with New Zealand's leading drone experts. Our staff are knowledgable drone pilots who offer expert advice, trusted support and superior specialist service. Only through us will you receive a full New Zealand warranty, phone and email support, and access to our certified Repairs Centre with DJI-qualified drone technicians. And we guarantee that we will have the best prices on the market — if not let us know and we will match any price (conditions apply).


Warranty Details

1 Year Warranty

What is a bathymetric LiDAR?
Based on visible green light emission, bathymetric LiDAR enables the measurement of topography under water. This allows for crucial mapping of coastlines with continuity under water.

Why a green laser?​
Water “absorbs” certain light wavelengths much more than others​. Depending on the water, absorption varies as well, however a trend is usually blueish-green penetrates the most​.

What is the laser class of this LiDAR system?
The YellowScan Navigator is a Class 3B laser product.​ Appropriate eyewear protection is mandatory to avoid eye injuries from the laser beam. ​Do not use sunglasses for laser protection and quickly proceed to get the drone at 30m AGL to ensure Nominal Ocular Hazard Distance (NOHD).​ Always make sure nobody is within 25m of the drone or LiDAR while active. ​

What are the typical applications?
The applications are many and varied. The YellowScan Navigator system can be used for river and lake analysis, coastal oceanography, safety of hydraulic structures, submarine archaeology, surface water hydrology, dredging and marine works.

What is a Secchi?
The Secchi Disc​ was created by Angelo Secchi and used to measure water transparency / turbidity in bodies of water​. The marine Secchi disc is a plain white, ø30 cm disc mounted on a pole. The freshwater Secchi disc is ø20 cm and features black quadrants. A Secchi is the depth at which it is not possible to distinguish the disc in water​. This depth varies according to the water’s turbidity​ and subjectively distinguishing the disc by the observer​. For example, if 1 Secchi is 2.2m under water, a 2 Secchi system will be able to measure up to 4.4m underwater approximately.

Is this system compatible with DJI M300/M350?
No, we do not recommend mounting the YellowScan Navigator system on the DJI M300/350 drone. The weight of the system (incl. battery) exceeds the manufacturer’s recommended maximum payload capacity (2.7 kg).

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