· Sensors

A flagship and two complements.

LIFL-11 leads. MFL-12 is the compact sibling. mHR-2 is the passive radiometric complement. All three built and field-tested in-house.

LIFL-11 · TECHNICAL SCHEMATIC REV.PLACEHOLDER

Forty-eight spectral bands. One pulse.

Multi-wavelength laser-induced fluorescence LiDAR. Records the full echo-signal spectrum of the near-surface water layer across forty-eight narrow optical bands. Two excitation models — 355 + 532 nm for chlorophyll, CDOM, and suspended matter, or 266 + 532 nm for oils, phenols, and tryptophan.

What it measures

Phytoplankton & pigments Chlorophyll-a from 0.05 to 400 mg·m⁻³, plus phycoerythrin, phycocyanin, and pigment index, from their fluorescence return.
Dissolved organic matter Coloured and fluorescent dissolved organic matter (CDOM/FDOM), fulvic and humic acids, and sewage tracers.
Hydrocarbons & oil Fuels, diesel, crude, and oil-in-water emulsions, fingerprinted by UV excitation at 266 nm.
Marine litter & plastics Polyethylene, polypropylene, wood, leaves, seagrass, and surface foam by their distinct fluorescence signatures.
Suspended matter Mineral matter and suspended sediment from 0.1 to 400 g·m⁻³ along the survey track.

LIFL-11 · DATASHEET REV.PLACEHOLDER

Forty-eight spectral bands. One pulse.

Specifications

Channels

Bands per channel

Total bands

48 · ~250–760 nm

Excitation

355 + 532 nm or 266 + 532 nm

Pulse energy

10 mJ @266 · 12 mJ @355 · 12 mJ @532

Pulse duration

5 ns

Repetition rate

up to 20 Hz

Full-spectrum acquisition

~10–15 s (station mode)

Telescope

75 mm Newton

Surface-layer sensing

0.5–10 m @355 nm · 1–25 m @532 nm

Vertical profiling

up to 50 m

Chl-a range

0.05–400 mg·m⁻³

Suspended matter range

0.1–400 g·m⁻³

CDOM (a440)

0.001–0.15 m⁻¹

Georeferencing

GNSS/IMU @10 Hz + context camera

Power

< 80 W · 24 V DC or 100–230 V AC

Size / mass

44 × 33 × 28 cm · 21 kg

Protection

IP68 · marine-grade · all-weather

Deployment platforms

Research vesselMotorboat / RIBFerry of opportunityAutogyro / small aircraftFixed coastal stationUSV

Full sensor page → Request datasheet

MFL-12 · TECHNICAL SCHEMATIC REV.PLACEHOLDER

Compact active fluorescence sensor for 24/7 aquatic monitoring.

The most compact hyperspectral LIF sensor of its class — 1.75 kg, single 405 nm excitation, hyperspectral reception across 405–880 nm. An ON/OFF measurement technique cancels sunlight, so it works day and night. Built for autonomous operation on buoys, piers, vessels, and drones. TRL 7–8; field-tested with ESA at Venice, 2025.

What it measures

Chlorophyll & CDOM Continuous chlorophyll-a and dissolved-organic-matter monitoring from a fixed or moving surface platform.
Suspended matter Tracks suspended-sediment concentration at outfalls, river mouths, and port basins.
Oil films & emulsions Detects oil-in-water films and emulsions, sensed from above the surface.
Day-and-night operation The ON/OFF laser technique isolates pure fluorescence and cancels ambient sunlight.

MFL-12 · DATASHEET REV.PLACEHOLDER

Compact active fluorescence sensor for 24/7 aquatic monitoring.

Specifications

Excitation

405 nm · single, modulated

Reception

hyperspectral · 405–880 nm

Spectral resolution

7 nm

Detection rate

up to 1 Hz

FOV / divergence

1°

ADC

12-bit

Integration time

270 µs – 1 s

Comms

RS485 / Wi-Fi / onboard logging

Position

GPS + IMU

Protection

IP68

Size / mass

130 × 140 × 121 mm · 1.75 kg

Deployment platforms

Moored buoyPier / bridgeVesselUAV droneUSVCoastal station

Full sensor page → Request datasheet

MHR-2 · TECHNICAL SCHEMATIC REV.PLACEHOLDER

Micro hyperspectral radiometer — above-water Rrs for satellite cal/val.

Passive three-channel radiometer. Measures sunlight reflected off the water the way a satellite does, but from the surface and free of atmospheric distortion, to derive Remote Sensing Reflectance (Rrs). Pairs with the active LIF sensors to build satellite match-up pairs. Developed in the OQOMETHI programme; field-tested with ESA at Venice, 2025.

What it measures

Above-water Rrs Interleaves downwelling irradiance, sky radiance, and sea-surface radiance with dark-current auto-calibration.
Satellite match-up Derives the exact Rrs quantity satellites estimate, for cal/val pairing alongside active LIF measurements.
Sun-glint rejection Above-water radiometry viewing geometry minimises surface glint.
Autonomous operation Runs unattended with automatic upload to cloud storage.

MHR-2 · DATASHEET REV.PLACEHOLDER

Micro hyperspectral radiometer — above-water Rrs for satellite cal/val.

Specifications

Channels

3 · Ed, Ls, Lt

Output

Rrs (remote-sensing reflectance)

Wavelength range

320–880 nm

Spectral resolution

7 nm

Radiance FOV

1°

ADC

12-bit

Integration time

270 µs – 1 s

Comms

RS485 / Wi-Fi / onboard logging

Power

12 V DC · 12 W peak

Size / mass

132 × 125 × 106 mm · 0.9 kg

Protection

IP68

Deployment platforms

VesselSmall boatBridge / pierBuoyFixed coastal platform

Full sensor page → Request datasheet

Datasheet

Full sensor datasheets, deployment guides, and integration notes available on request.

Request datasheet →